2613513779268 has 24 divisors (see below), whose sum is σ = 6969370078272. Its totient is φ = 746718222624.

The previous prime is 2613513779161. The next prime is 2613513779269. The reversal of 2613513779268 is 8629773153162.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2613513779269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15556629555 + ... + 15556629722.

It is an arithmetic number, because the mean of its divisors is an integer number (290390419928).

Almost surely, 2^{2613513779268} is an apocalyptic number.

2613513779268 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2613513779268 is an abundant number, since it is smaller than the sum of its proper divisors (4355856299004).

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

2613513779268 is a wasteful number, since it uses less digits than its factorization.

2613513779268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31113259291 (or 31113259289 counting only the distinct ones).

The product of its digits is 22861440, while the sum is 60.

The spelling of 2613513779268 in words is "two trillion, six hundred thirteen billion, five hundred thirteen million, seven hundred seventy-nine thousand, two hundred sixty-eight".