721677125112 has 16 divisors (see below), whose sum is σ = 1804192812840. Its totient is φ = 240559041696.

The previous prime is 721677125087. The next prime is 721677125173. The reversal of 721677125112 is 211521776127.

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, 15034940083 + ... + 15034940130.

Almost surely, 2^721677125112 is an apocalyptic number.

It is an amenable number.

721677125112 is an abundant number, since it is smaller than the sum of its proper divisors (1082515687728).

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

721677125112 is a wasteful number, since it uses less digits than its factorization.

721677125112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30069880222 (or 30069880218 counting only the distinct ones).

The product of its digits is 82320, while the sum is 42.

The spelling of 721677125112 in words is "seven hundred twenty-one billion, six hundred seventy-seven million, one hundred twenty-five thousand, one hundred twelve".