202638623716 has 9 divisors (see below), whose sum is σ = 354619167049. Its totient is φ = 101318861704.

The previous prime is 202638623701. The next prime is 202638623723. The reversal of 202638623716 is 617326836202.

The square root of 202638623716 is 450154.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 175117140900 + 27521482816 = 418470^2 + 165896^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 787770 + ... + 1012846.

Almost surely, 2^202638623716 is an apocalyptic number.

202638623716 is the 450154-th square number.

It is an amenable number.

202638623716 is a deficient number, since it is larger than the sum of its proper divisors (151980543333).

202638623716 is an frugal number, since it uses more digits than its factorization.

202638623716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450158 (or 225079 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 46.

The spelling of 202638623716 in words is "two hundred two billion, six hundred thirty-eight million, six hundred twenty-three thousand, seven hundred sixteen".