712991626816 has 56 divisors (see below), whose sum is σ = 1660664899136. Its totient is φ = 297309242880.

The previous prime is 712991626799. The next prime is 712991626817. The reversal of 712991626816 is 618626199217.

It is a tau number, because it is divible by the number of its divisors (56).

It is not an unprimeable number, because it can be changed into a prime (712991626817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21490170 + ... + 21523321.

Almost surely, 2^712991626816 is an apocalyptic number.

It is an amenable number.

712991626816 is an abundant number, since it is smaller than the sum of its proper divisors (947673272320).

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

712991626816 is a wasteful number, since it uses less digits than its factorization.

712991626816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43013547 (or 43013537 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 58.

The spelling of 712991626816 in words is "seven hundred twelve billion, nine hundred ninety-one million, six hundred twenty-six thousand, eight hundred sixteen".