172078196075 has 12 divisors (see below), whose sum is σ = 213839834208. Its totient is φ = 137363930400.

The previous prime is 172078196041. The next prime is 172078196083. The reversal of 172078196075 is 570691870271.

It is a de Polignac number, because none of the positive numbers 2^k-172078196075 is a prime.

It is a super-2 number, since 2×172078196075² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7453907 + ... + 7476956.

It is an arithmetic number, because the mean of its divisors is an integer number (17819986184).

Almost surely, 2^172078196075 is an apocalyptic number.

172078196075 is a deficient number, since it is larger than the sum of its proper divisors (41761638133).

172078196075 is a wasteful number, since it uses less digits than its factorization.

172078196075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14931334 (or 14931329 counting only the distinct ones).

The product of its (nonzero) digits is 1481760, while the sum is 53.

The spelling of 172078196075 in words is "one hundred seventy-two billion, seventy-eight million, one hundred ninety-six thousand, seventy-five".