2158251461790 has 32 divisors (see below), whose sum is σ = 5233203551520. Its totient is φ = 569600385024.

The previous prime is 2158251461789. The next prime is 2158251461791. The reversal of 2158251461790 is 971641528512.

It is an interprime number because it is at equal distance from previous prime (2158251461789) and next prime (2158251461791).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2158251461791) 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, 370830675 + ... + 370836494.

It is an arithmetic number, because the mean of its divisors is an integer number (163537610985).

Almost surely, 2^{2158251461790} is an apocalyptic number.

2158251461790 is an abundant number, since it is smaller than the sum of its proper divisors (3074952089730).

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

2158251461790 is a wasteful number, since it uses less digits than its factorization.

2158251461790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741667276.

The product of its (nonzero) digits is 1209600, while the sum is 51.

The spelling of 2158251461790 in words is "two trillion, one hundred fifty-eight billion, two hundred fifty-one million, four hundred sixty-one thousand, seven hundred ninety".