68750279487656 has 64 divisors (see below), whose sum is σ = 138944332800000. Its totient is φ = 31703103818496.

The previous prime is 68750279487613. The next prime is 68750279487689. The reversal of 68750279487656 is 65678497205786.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 571339865 + ... + 571460183.

It is an arithmetic number, because the mean of its divisors is an integer number (2171005200000).

Almost surely, 2^{68750279487656} is an apocalyptic number.

It is an amenable number.

68750279487656 is an abundant number, since it is smaller than the sum of its proper divisors (70194053312344).

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

68750279487656 is a wasteful number, since it uses less digits than its factorization.

68750279487656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125106 (or 125102 counting only the distinct ones).

The product of its (nonzero) digits is 8534937600, while the sum is 80.

The spelling of 68750279487656 in words is "sixty-eight trillion, seven hundred fifty billion, two hundred seventy-nine million, four hundred eighty-seven thousand, six hundred fifty-six".