172097592980 has 48 divisors (see below), whose sum is σ = 366185610000. Its totient is φ = 67931483136.

The previous prime is 172097592977. The next prime is 172097592983. The reversal of 172097592980 is 89295790271.

It is an interprime number because it is at equal distance from previous prime (172097592977) and next prime (172097592983).

It can be written as a sum of positive squares in 8 ways, for example, as 13682448784 + 158415144196 = 116972^2 + 398014^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172097592983) 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, 811046 + ... + 1000994.

It is an arithmetic number, because the mean of its divisors is an integer number (7628866875).

Almost surely, 2^172097592980 is an apocalyptic number.

172097592980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172097592980 is an abundant number, since it is smaller than the sum of its proper divisors (194088017020).

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

172097592980 is a wasteful number, since it uses less digits than its factorization.

172097592980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190556 (or 190554 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 59.

The spelling of 172097592980 in words is "one hundred seventy-two billion, ninety-seven million, five hundred ninety-two thousand, nine hundred eighty".