64709412651 has 16 divisors (see below), whose sum is σ = 103240089120. Its totient is φ = 39821176800.

The previous prime is 64709412569. The next prime is 64709412727. The reversal of 64709412651 is 15621490746.

64709412651 is a `hidden beast` number, since 6 + 470 + 9 + 4 + 126 + 51 = 666.

It is not a de Polignac number, because 64709412651 - 2⁹ = 64709412139 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 64709412597 and 64709412606.

It is not an unprimeable number, because it can be changed into a prime (64709412151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92178300 + ... + 92179001.

It is an arithmetic number, because the mean of its divisors is an integer number (6452505570).

Almost surely, 2^64709412651 is an apocalyptic number.

64709412651 is a deficient number, since it is larger than the sum of its proper divisors (38530676469).

64709412651 is a wasteful number, since it uses less digits than its factorization.

64709412651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184357323 (or 184357317 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 64709412651 in words is "sixty-four billion, seven hundred nine million, four hundred twelve thousand, six hundred fifty-one".