628131265694 has 8 divisors (see below), whose sum is σ = 997620245568. Its totient is φ = 295591183840.

The previous prime is 628131265669. The next prime is 628131265703. The reversal of 628131265694 is 496562131826.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 9237224462 + ... + 9237224529.

It is an arithmetic number, because the mean of its divisors is an integer number (124702530696).

Almost surely, 2^628131265694 is an apocalyptic number.

628131265694 is a deficient number, since it is larger than the sum of its proper divisors (369488979874).

628131265694 is a wasteful number, since it uses less digits than its factorization.

628131265694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18474449010.

The product of its digits is 3732480, while the sum is 53.

The spelling of 628131265694 in words is "six hundred twenty-eight billion, one hundred thirty-one million, two hundred sixty-five thousand, six hundred ninety-four".