2660762087 has 4 divisors (see below), whose sum is σ = 2661873600. Its totient is φ = 2659650576.

The previous prime is 2660762081. The next prime is 2660762101. The reversal of 2660762087 is 7802670662.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7802670662 = 2 ⋅3901335331.

It is a cyclic number.

It is not a de Polignac number, because 2660762087 - 2¹⁰ = 2660761063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2660762081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 552158 + ... + 556955.

It is an arithmetic number, because the mean of its divisors is an integer number (665468400).

Almost surely, 2^2660762087 is an apocalyptic number.

2660762087 is a deficient number, since it is larger than the sum of its proper divisors (1111513).

2660762087 is a wasteful number, since it uses less digits than its factorization.

2660762087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111512.

The product of its (nonzero) digits is 338688, while the sum is 44.

The square root of 2660762087 is about 51582.5754203878. The cubic root of 2660762087 is about 1385.6982906317.

The spelling of 2660762087 in words is "two billion, six hundred sixty million, seven hundred sixty-two thousand, eighty-seven".