64253074986 has 32 divisors (see below), whose sum is σ = 144170881920. Its totient is φ = 21209751072.

The previous prime is 64253074981. The next prime is 64253074997. The reversal of 64253074986 is 68947035246.

64253074986 is a `hidden beast` number, since 64 + 2 + 530 + 7 + 49 + 8 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (64253074981) 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 15 ways as a sum of consecutive naturals, for example, 5770515 + ... + 5781638.

It is an arithmetic number, because the mean of its divisors is an integer number (4505340060).

Almost surely, 2^64253074986 is an apocalyptic number.

64253074986 is an abundant number, since it is smaller than the sum of its proper divisors (79917806934).

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

64253074986 is a wasteful number, since it uses less digits than its factorization.

64253074986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11552267 (or 11552261 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 54.

The spelling of 64253074986 in words is "sixty-four billion, two hundred fifty-three million, seventy-four thousand, nine hundred eighty-six".