46818290640 has 320 divisors, whose sum is σ = 172046131200. Its totient is φ = 10405324800.

The previous prime is 46818290639. The next prime is 46818290641. The reversal of 46818290640 is 4609281864.

It is an interprime number because it is at equal distance from previous prime (46818290639) and next prime (46818290641).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 46818290640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46818290641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1539906 + ... + 1570014.

It is an arithmetic number, because the mean of its divisors is an integer number (537644160).

Almost surely, 2^46818290640 is an apocalyptic number.

46818290640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 46818290640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86023065600).

46818290640 is an abundant number, since it is smaller than the sum of its proper divisors (125227840560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

46818290640 is a wasteful number, since it uses less digits than its factorization.

46818290640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30186 (or 30180 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 48.

The spelling of 46818290640 in words is "forty-six billion, eight hundred eighteen million, two hundred ninety thousand, six hundred forty".