2158587474 has 64 divisors (see below), whose sum is σ = 4633251840. Its totient is φ = 669159360.

The previous prime is 2158587433. The next prime is 2158587527. The reversal of 2158587474 is 4747858512.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 569317 + ... + 573095.

It is an arithmetic number, because the mean of its divisors is an integer number (72394560).

Almost surely, 2^2158587474 is an apocalyptic number.

2158587474 is an abundant number, since it is smaller than the sum of its proper divisors (2474664366).

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

2158587474 is a wasteful number, since it uses less digits than its factorization.

2158587474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3935.

The product of its digits is 2508800, while the sum is 51.

The square root of 2158587474 is about 46460.6013090662. The cubic root of 2158587474 is about 1292.3789752581.

The spelling of 2158587474 in words is "two billion, one hundred fifty-eight million, five hundred eighty-seven thousand, four hundred seventy-four".