183997252990 has 32 divisors (see below), whose sum is σ = 338276456064. Its totient is φ = 72025578240.

The previous prime is 183997252987. The next prime is 183997253117. The reversal of 183997252990 is 99252799381.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7818922 + ... + 7842418.

It is an arithmetic number, because the mean of its divisors is an integer number (10571139252).

Almost surely, 2^183997252990 is an apocalyptic number.

183997252990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

183997252990 is a deficient number, since it is larger than the sum of its proper divisors (154279203074).

183997252990 is a wasteful number, since it uses less digits than its factorization.

183997252990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40212.

The product of its (nonzero) digits is 22044960, while the sum is 64.

The spelling of 183997252990 in words is "one hundred eighty-three billion, nine hundred ninety-seven million, two hundred fifty-two thousand, nine hundred ninety".