258184542990 has 64 divisors (see below), whose sum is σ = 676149949440. Its totient is φ = 62573907840.

The previous prime is 258184542989. The next prime is 258184542997. The reversal of 258184542990 is 99245481852.

It is a self number, because there is not a number n which added to its sum of digits gives 258184542990.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258184542997) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1193452 + ... + 1393088.

It is an arithmetic number, because the mean of its divisors is an integer number (10564842960).

Almost surely, 2^258184542990 is an apocalyptic number.

258184542990 is an abundant number, since it is smaller than the sum of its proper divisors (417965406450).

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

258184542990 is a wasteful number, since it uses less digits than its factorization.

258184542990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203577.

The product of its (nonzero) digits is 8294400, while the sum is 57.

The spelling of 258184542990 in words is "two hundred fifty-eight billion, one hundred eighty-four million, five hundred forty-two thousand, nine hundred ninety".