64607412479 has 4 divisors (see below), whose sum is σ = 64745758584. Its totient is φ = 64469066376.

The previous prime is 64607412473. The next prime is 64607412497. The reversal of 64607412479 is 97421470646.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64607412479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64607412473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69172352 + ... + 69173285.

It is an arithmetic number, because the mean of its divisors is an integer number (16186439646).

Almost surely, 2^64607412479 is an apocalyptic number.

64607412479 is a deficient number, since it is larger than the sum of its proper divisors (138346105).

64607412479 is a wasteful number, since it uses less digits than its factorization.

64607412479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138346104.

The product of its (nonzero) digits is 2032128, while the sum is 50.

The spelling of 64607412479 in words is "sixty-four billion, six hundred seven million, four hundred twelve thousand, four hundred seventy-nine".