172621046368 has 24 divisors (see below), whose sum is σ = 339875366040. Its totient is φ = 86303493120.

The previous prime is 172621046329. The next prime is 172621046393. The reversal of 172621046368 is 863640126271.

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, 191143 + ... + 617881.

It is an arithmetic number, because the mean of its divisors is an integer number (14161473585).

Almost surely, 2^172621046368 is an apocalyptic number.

It is an amenable number.

172621046368 is a deficient number, since it is larger than the sum of its proper divisors (167254319672).

172621046368 is a wasteful number, since it uses less digits than its factorization.

172621046368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439390 (or 439382 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 46.

The spelling of 172621046368 in words is "one hundred seventy-two billion, six hundred twenty-one million, forty-six thousand, three hundred sixty-eight".