68920391030 has 16 divisors (see below), whose sum is σ = 125261139744. Its totient is φ = 27300504000.

The previous prime is 68920390993. The next prime is 68920391077. The reversal of 68920391030 is 3019302986.

It is a Curzon number.

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, 33455471 + ... + 33457530.

It is an arithmetic number, because the mean of its divisors is an integer number (7828821234).

Almost surely, 2^68920391030 is an apocalyptic number.

68920391030 is a deficient number, since it is larger than the sum of its proper divisors (56340748714).

68920391030 is a wasteful number, since it uses less digits than its factorization.

68920391030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66913111.

The product of its (nonzero) digits is 69984, while the sum is 41.

The spelling of 68920391030 in words is "sixty-eight billion, nine hundred twenty million, three hundred ninety-one thousand, thirty".