45751940640 has 192 divisors, whose sum is σ = 183007883520. Its totient is φ = 10457579520.

The previous prime is 45751940629. The next prime is 45751940677. The reversal of 45751940640 is 4604915754.

45751940640 is a `hidden beast` number, since 4 + 57 + 519 + 40 + 6 + 40 = 666.

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 31 ways as a sum of consecutive naturals, for example, 726241 + ... + 786720.

It is an arithmetic number, because the mean of its divisors is an integer number (953166060).

Almost surely, 2^45751940640 is an apocalyptic number.

45751940640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45751940640 is an abundant number, since it is smaller than the sum of its proper divisors (137255942880).

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

45751940640 is a wasteful number, since it uses less digits than its factorization.

45751940640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1512992 (or 1512978 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The spelling of 45751940640 in words is "forty-five billion, seven hundred fifty-one million, nine hundred forty thousand, six hundred forty".