68856279376 has 30 divisors (see below), whose sum is σ = 140800135722. Its totient is φ = 32616129600.

The previous prime is 68856279361. The next prime is 68856279407. The reversal of 68856279376 is 67397265886.

It can be written as a sum of positive squares in only one way, i.e., 46915560000 + 21940719376 = 216600^2 + 148124^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5954775 + ... + 5966326.

Almost surely, 2^68856279376 is an apocalyptic number.

It is an amenable number.

68856279376 is an abundant number, since it is smaller than the sum of its proper divisors (71943856346).

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

68856279376 is a wasteful number, since it uses less digits than its factorization.

68856279376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11921147 (or 11921122 counting only the distinct ones).

The product of its digits is 182891520, while the sum is 67.

The spelling of 68856279376 in words is "sixty-eight billion, eight hundred fifty-six million, two hundred seventy-nine thousand, three hundred seventy-six".