2613131988 has 12 divisors (see below), whose sum is σ = 6097308000. Its totient is φ = 871043992.

The previous prime is 2613131987. The next prime is 2613132013. The reversal of 2613131988 is 8891313162.

2613131988 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2613131987) 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, 108880488 + ... + 108880511.

It is an arithmetic number, because the mean of its divisors is an integer number (508109000).

Almost surely, 2^2613131988 is an apocalyptic number.

It is an amenable number.

2613131988 is an abundant number, since it is smaller than the sum of its proper divisors (3484176012).

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

2613131988 is a wasteful number, since it uses less digits than its factorization.

2613131988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217761006 (or 217761004 counting only the distinct ones).

The product of its digits is 62208, while the sum is 42.

The square root of 2613131988 is about 51118.8026855090. The cubic root of 2613131988 is about 1377.3800301094.

The spelling of 2613131988 in words is "two billion, six hundred thirteen million, one hundred thirty-one thousand, nine hundred eighty-eight".