172057138994 has 16 divisors (see below), whose sum is σ = 280126952448. Its totient is φ = 78785702352.

The previous prime is 172057138991. The next prime is 172057138999. The reversal of 172057138994 is 499831750271.

172057138994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (172057138991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26050172 + ... + 26056775.

It is an arithmetic number, because the mean of its divisors is an integer number (17507934528).

Almost surely, 2^172057138994 is an apocalyptic number.

172057138994 is a deficient number, since it is larger than the sum of its proper divisors (108069813454).

172057138994 is a wasteful number, since it uses less digits than its factorization.

172057138994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52107089.

The product of its (nonzero) digits is 3810240, while the sum is 56.

The spelling of 172057138994 in words is "one hundred seventy-two billion, fifty-seven million, one hundred thirty-eight thousand, nine hundred ninety-four".