68697720692 has 12 divisors (see below), whose sum is σ = 120356554080. Its totient is φ = 34310133816.

The previous prime is 68697720659. The next prime is 68697720733. The reversal of 68697720692 is 29602779686.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9677642 + ... + 9684737.

It is an arithmetic number, because the mean of its divisors is an integer number (10029712840).

Almost surely, 2^68697720692 is an apocalyptic number.

It is an amenable number.

68697720692 is a deficient number, since it is larger than the sum of its proper divisors (51658833388).

68697720692 is a wasteful number, since it uses less digits than its factorization.

68697720692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19363270 (or 19363268 counting only the distinct ones).

The product of its (nonzero) digits is 27433728, while the sum is 62.

The spelling of 68697720692 in words is "sixty-eight billion, six hundred ninety-seven million, seven hundred twenty thousand, six hundred ninety-two".