172364953428 has 72 divisors (see below), whose sum is σ = 466412826880. Its totient is φ = 55601588160.

The previous prime is 172364953421. The next prime is 172364953433. The reversal of 172364953428 is 824359463271.

172364953428 is a `hidden beast` number, since 1 + 7 + 23 + 64 + 9 + 534 + 28 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172364953421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2830033 + ... + 2890296.

Almost surely, 2^172364953428 is an apocalyptic number.

172364953428 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

172364953428 is an abundant number, since it is smaller than the sum of its proper divisors (294047873452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

172364953428 is a wasteful number, since it uses less digits than its factorization.

172364953428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5720379 (or 5720365 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 54.

The spelling of 172364953428 in words is "one hundred seventy-two billion, three hundred sixty-four million, nine hundred fifty-three thousand, four hundred twenty-eight".