2687939479 has 16 divisors (see below), whose sum is σ = 2885863680. Its totient is φ = 2494558080.

The previous prime is 2687939477. The next prime is 2687939533. The reversal of 2687939479 is 9749397862.

2687939479 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2687939479 - 2¹ = 2687939477 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2687939479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2687939473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 888832 + ... + 891850.

It is an arithmetic number, because the mean of its divisors is an integer number (180366480).

Almost surely, 2^2687939479 is an apocalyptic number.

2687939479 is a deficient number, since it is larger than the sum of its proper divisors (197924201).

2687939479 is a wasteful number, since it uses less digits than its factorization.

2687939479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3750.

The product of its digits is 41150592, while the sum is 64.

The square root of 2687939479 is about 51845.3419219123. The cubic root of 2687939479 is about 1390.4002227270.

The spelling of 2687939479 in words is "two billion, six hundred eighty-seven million, nine hundred thirty-nine thousand, four hundred seventy-nine".