2613955887 has 16 divisors (see below), whose sum is σ = 4100323680. Its totient is φ = 1640128896.

The previous prime is 2613955831. The next prime is 2613955891. The reversal of 2613955887 is 7885593162.

2613955887 is a `hidden beast` number, since 2 + 6 + 1 + 3 + 9 + 558 + 87 = 666.

It is not a de Polignac number, because 2613955887 - 2⁶ = 2613955823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2613951887) 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, 2846988 + ... + 2847905.

It is an arithmetic number, because the mean of its divisors is an integer number (256270230).

Almost surely, 2^2613955887 is an apocalyptic number.

2613955887 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2613955887 is a deficient number, since it is larger than the sum of its proper divisors (1486367793).

2613955887 is a wasteful number, since it uses less digits than its factorization.

2613955887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5694919 (or 5694913 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 54.

The square root of 2613955887 is about 51126.8607191953. The cubic root of 2613955887 is about 1377.5247737592.

The spelling of 2613955887 in words is "two billion, six hundred thirteen million, nine hundred fifty-five thousand, eight hundred eighty-seven".