2087813615 has 32 divisors (see below), whose sum is σ = 2747644416. Its totient is φ = 1518168960.

The previous prime is 2087813587. The next prime is 2087813621. The reversal of 2087813615 is 5163187802.

It is not a de Polignac number, because 2087813615 - 2¹⁶ = 2087748079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 177260 + ... + 188670.

It is an arithmetic number, because the mean of its divisors is an integer number (85863888).

Almost surely, 2^2087813615 is an apocalyptic number.

2087813615 is a deficient number, since it is larger than the sum of its proper divisors (659830801).

2087813615 is a wasteful number, since it uses less digits than its factorization.

2087813615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11519.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 2087813615 is about 45692.5991272110. The cubic root of 2087813615 is about 1278.0972736975.

The spelling of 2087813615 in words is "two billion, eighty-seven million, eight hundred thirteen thousand, six hundred fifteen".