68231069680 has 40 divisors (see below), whose sum is σ = 158649859152. Its totient is φ = 27290256384.

The previous prime is 68231069653. The next prime is 68231069693. The reversal of 68231069680 is 8696013286.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1306959 + ... + 1358161.

Almost surely, 2^68231069680 is an apocalyptic number.

It is an amenable number.

68231069680 is an abundant number, since it is smaller than the sum of its proper divisors (90418789472).

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

68231069680 is a wasteful number, since it uses less digits than its factorization.

68231069680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67873 (or 67867 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 49.

The spelling of 68231069680 in words is "sixty-eight billion, two hundred thirty-one million, sixty-nine thousand, six hundred eighty".