172139306604 has 48 divisors (see below), whose sum is σ = 412656665568. Its totient is φ = 55809658368.

The previous prime is 172139306587. The next prime is 172139306621. The reversal of 172139306604 is 406603931271.

It is an interprime number because it is at equal distance from previous prime (172139306587) and next prime (172139306621).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1247352 + ... + 1378464.

It is an arithmetic number, because the mean of its divisors is an integer number (8597013866).

Almost surely, 2^172139306604 is an apocalyptic number.

It is an amenable number.

172139306604 is an abundant number, since it is smaller than the sum of its proper divisors (240517358964).

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

172139306604 is a wasteful number, since it uses less digits than its factorization.

172139306604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134114 (or 134112 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 42.

The spelling of 172139306604 in words is "one hundred seventy-two billion, one hundred thirty-nine million, three hundred six thousand, six hundred four".