80923180900 has 27 divisors (see below), whose sum is σ = 175609475769. Its totient is φ = 32368134480.

The previous prime is 80923180867. The next prime is 80923180901. The reversal of 80923180900 is 908132908.

The square root of 80923180900 is 284470.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 29132345124 + 51790835776 = 170682^2 + 227576^2 .

It is a super-2 number, since 2×80923180900² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80923180901) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2830477 + ... + 2858923.

Almost surely, 2^80923180900 is an apocalyptic number.

80923180900 is the 284470-th square number.

It is an amenable number.

80923180900 is an abundant number, since it is smaller than the sum of its proper divisors (94686294869).

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

80923180900 is an frugal number, since it uses more digits than its factorization.

80923180900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56908 (or 28454 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 40.

The spelling of 80923180900 in words is "eighty billion, nine hundred twenty-three million, one hundred eighty thousand, nine hundred".