172369112906 has 16 divisors (see below), whose sum is σ = 281546647200. Its totient is φ = 78833060208.

The previous prime is 172369112869. The next prime is 172369112941. The reversal of 172369112906 is 609211963271.

It is a super-2 number, since 2×172369112906² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78206300 + ... + 78208503.

It is an arithmetic number, because the mean of its divisors is an integer number (17596665450).

Almost surely, 2^172369112906 is an apocalyptic number.

172369112906 is a deficient number, since it is larger than the sum of its proper divisors (109177534294).

172369112906 is a wasteful number, since it uses less digits than its factorization.

172369112906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156414853.

The product of its (nonzero) digits is 244944, while the sum is 47.

The spelling of 172369112906 in words is "one hundred seventy-two billion, three hundred sixty-nine million, one hundred twelve thousand, nine hundred six".