46991024640 has 1280 divisors, whose sum is σ = 210007987200. Its totient is φ = 9710862336.

The previous prime is 46991024603. The next prime is 46991024653. The reversal of 46991024640 is 4642019964.

46991024640 is a `hidden beast` number, since 469 + 9 + 102 + 46 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (1280).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 238533022 + ... + 238533218.

It is an arithmetic number, because the mean of its divisors is an integer number (164068740).

Almost surely, 2^46991024640 is an apocalyptic number.

46991024640 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 46991024640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105003993600).

46991024640 is an abundant number, since it is smaller than the sum of its proper divisors (163016962560).

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

46991024640 is a wasteful number, since it uses less digits than its factorization.

46991024640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282 (or 260 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The spelling of 46991024640 in words is "forty-six billion, nine hundred ninety-one million, twenty-four thousand, six hundred forty".