68564124507 has 16 divisors (see below), whose sum is σ = 91523919872. Its totient is φ = 45656909280.

The previous prime is 68564124467. The next prime is 68564124521. The reversal of 68564124507 is 70542146586.

It is not a de Polignac number, because 68564124507 - 2⁶ = 68564124443 is a prime.

It is a super-2 number, since 2×68564124507² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68564120507) 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, 17281638 + ... + 17285604.

It is an arithmetic number, because the mean of its divisors is an integer number (5720244992).

Almost surely, 2^68564124507 is an apocalyptic number.

68564124507 is a deficient number, since it is larger than the sum of its proper divisors (22959795365).

68564124507 is a wasteful number, since it uses less digits than its factorization.

68564124507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9138.

The product of its (nonzero) digits is 1612800, while the sum is 48.

The spelling of 68564124507 in words is "sixty-eight billion, five hundred sixty-four million, one hundred twenty-four thousand, five hundred seven".