2157518010 has 16 divisors (see below), whose sum is σ = 5178043296. Its totient is φ = 575338128.

The previous prime is 2157518003. The next prime is 2157518023. The reversal of 2157518010 is 108157512.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 71917267 = 2157518010 / (2 + 1 + 5 + 7 + 5 + 1 + 8 + 0 + 1 + 0).

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 7 ways as a sum of consecutive naturals, for example, 35958604 + ... + 35958663.

It is an arithmetic number, because the mean of its divisors is an integer number (323627706).

Almost surely, 2^2157518010 is an apocalyptic number.

2157518010 is an abundant number, since it is smaller than the sum of its proper divisors (3020525286).

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

2157518010 is a wasteful number, since it uses less digits than its factorization.

2157518010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71917277.

The product of its (nonzero) digits is 2800, while the sum is 30.

The square root of 2157518010 is about 46449.0905185451. The cubic root of 2157518010 is about 1292.1655052415.

The spelling of 2157518010 in words is "two billion, one hundred fifty-seven million, five hundred eighteen thousand, ten".