172053157290 has 64 divisors (see below), whose sum is σ = 475633188864. Its totient is φ = 39016772928.

The previous prime is 172053157273. The next prime is 172053157349. The reversal of 172053157290 is 92751350271.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3198924 + ... + 3252263.

It is an arithmetic number, because the mean of its divisors is an integer number (7431768576).

Almost surely, 2^172053157290 is an apocalyptic number.

172053157290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

172053157290 is an abundant number, since it is smaller than the sum of its proper divisors (303580031574).

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

172053157290 is a wasteful number, since it uses less digits than its factorization.

172053157290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6451331.

The product of its (nonzero) digits is 132300, while the sum is 42.

The spelling of 172053157290 in words is "one hundred seventy-two billion, fifty-three million, one hundred fifty-seven thousand, two hundred ninety".