172052053867 has 16 divisors (see below), whose sum is σ = 184514961312. Its totient is φ = 159862210560.

The previous prime is 172052053819. The next prime is 172052053933. The reversal of 172052053867 is 768350250271.

It is a cyclic number.

It is not a de Polignac number, because 172052053867 - 2⁷ = 172052053739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172052053067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229663 + ... + 629959.

It is an arithmetic number, because the mean of its divisors is an integer number (11532185082).

Almost surely, 2^172052053867 is an apocalyptic number.

172052053867 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

172052053867 is a deficient number, since it is larger than the sum of its proper divisors (12462907445).

172052053867 is a wasteful number, since it uses less digits than its factorization.

172052053867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400638.

The product of its (nonzero) digits is 705600, while the sum is 46.

The spelling of 172052053867 in words is "one hundred seventy-two billion, fifty-two million, fifty-three thousand, eight hundred sixty-seven".