2151790874 has 8 divisors (see below), whose sum is σ = 3228099348. Its totient is φ = 1075757760.

The previous prime is 2151790847. The next prime is 2151790877. The reversal of 2151790874 is 4780971512.

It can be written as a sum of positive squares in 2 ways, for example, as 1788697849 + 363093025 = 42293^2 + 19055^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2151790877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48047 + ... + 81314.

Almost surely, 2^2151790874 is an apocalyptic number.

2151790874 is a deficient number, since it is larger than the sum of its proper divisors (1076308474).

2151790874 is a wasteful number, since it uses less digits than its factorization.

2151790874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137680.

The product of its (nonzero) digits is 141120, while the sum is 44.

The square root of 2151790874 is about 46387.3999486930. The cubic root of 2151790874 is about 1291.0211400720.

The spelling of 2151790874 in words is "two billion, one hundred fifty-one million, seven hundred ninety thousand, eight hundred seventy-four".