68771504972 has 6 divisors (see below), whose sum is σ = 120350133708. Its totient is φ = 34385752484.

The previous prime is 68771504953. The next prime is 68771504987. The reversal of 68771504972 is 27940517786.

It is a super-2 number, since 2×68771504972² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8596438118 + ... + 8596438125.

It is an arithmetic number, because the mean of its divisors is an integer number (20058355618).

Almost surely, 2^68771504972 is an apocalyptic number.

It is an amenable number.

68771504972 is a deficient number, since it is larger than the sum of its proper divisors (51578628736).

68771504972 is a wasteful number, since it uses less digits than its factorization.

68771504972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17192876247 (or 17192876245 counting only the distinct ones).

The product of its (nonzero) digits is 5927040, while the sum is 56.

The spelling of 68771504972 in words is "sixty-eight billion, seven hundred seventy-one million, five hundred four thousand, nine hundred seventy-two".