64792503720 has 128 divisors (see below), whose sum is σ = 246828614400. Its totient is φ = 14809713408.

The previous prime is 64792503707. The next prime is 64792503761. The reversal of 64792503720 is 2730529746.

64792503720 is a `hidden beast` number, since 6 + 4 + 79 + 2 + 503 + 72 + 0 = 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, 4277659 + ... + 4292778.

It is an arithmetic number, because the mean of its divisors is an integer number (1928348550).

Almost surely, 2^64792503720 is an apocalyptic number.

64792503720 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64792503720 is an abundant number, since it is smaller than the sum of its proper divisors (182036110680).

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

64792503720 is a wasteful number, since it uses less digits than its factorization.

64792503720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8570464 (or 8570454 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 45.

The spelling of 64792503720 in words is "sixty-four billion, seven hundred ninety-two million, five hundred three thousand, seven hundred twenty".