172404930770 has 16 divisors (see below), whose sum is σ = 310340752920. Its totient is φ = 68959332864.

The previous prime is 172404930757. The next prime is 172404930773. The reversal of 172404930770 is 77039404271.

It can be written as a sum of positive squares in 4 ways, for example, as 163831467121 + 8573463649 = 404761^2 + 92593^2 .

It is not an unprimeable number, because it can be changed into a prime (172404930773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43775 + ... + 588834.

Almost surely, 2^172404930770 is an apocalyptic number.

172404930770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

172404930770 is a deficient number, since it is larger than the sum of its proper divisors (137935822150).

172404930770 is a wasteful number, since it uses less digits than its factorization.

172404930770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659869.

The product of its (nonzero) digits is 296352, while the sum is 44.

The spelling of 172404930770 in words is "one hundred seventy-two billion, four hundred four million, nine hundred thirty thousand, seven hundred seventy".