12558708990 has 56 divisors (see below), whose sum is σ = 33893029368. Its totient is φ = 3348987120.

The previous prime is 12558708971. The next prime is 12558708991. The reversal of 12558708990 is 9980785521.

12558708990 is a `hidden beast` number, since 1 + 2 + 558 + 7 + 0 + 89 + 9 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12558708991) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 854076 + ... + 868655.

Almost surely, 2^12558708990 is an apocalyptic number.

12558708990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12558708990 is an abundant number, since it is smaller than the sum of its proper divisors (21334320378).

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

12558708990 is an equidigital number, since it uses as much as digits as its factorization.

12558708990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1722756 (or 1722741 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 54.

The spelling of 12558708990 in words is "twelve billion, five hundred fifty-eight million, seven hundred eight thousand, nine hundred ninety".