494015151651840 has 2112 divisors, whose sum is σ = 2220851975946240. Its totient is φ = 98603402526720.

The previous prime is 494015151651839. The next prime is 494015151651841. The reversal of 494015151651840 is 48156151510494.

494015151651840 is a `hidden beast` number, since 4 + 9 + 40 + 1 + 5 + 1 + 516 + 5 + 1 + 84 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (494015151651839) and next prime (494015151651841).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494015151651841) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 60311942145 + ... + 60311950335.

Almost surely, 2^{494015151651840} is an apocalyptic number.

494015151651840 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 494015151651840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1110425987973120).

494015151651840 is an abundant number, since it is smaller than the sum of its proper divisors (1726836824294400).

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

494015151651840 is a wasteful number, since it uses less digits than its factorization.

494015151651840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9018 (or 8997 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 54.

The spelling of 494015151651840 in words is "four hundred ninety-four trillion, fifteen billion, one hundred fifty-one million, six hundred fifty-one thousand, eight hundred forty".