2515136779316 has 96 divisors (see below), whose sum is σ = 5323503144960. Its totient is φ = 1015700684544.

The previous prime is 2515136779279. The next prime is 2515136779319. The reversal of 2515136779316 is 6139776315152.

It is a happy number.

It is a super-2 number, since 2×2515136779316² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2515136779319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 119854961 + ... + 119875943.

It is an arithmetic number, because the mean of its divisors is an integer number (55453157760).

Almost surely, 2^{2515136779316} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2515136779316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2661751572480).

2515136779316 is an abundant number, since it is smaller than the sum of its proper divisors (2808366365644).

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

2515136779316 is a wasteful number, since it uses less digits than its factorization.

2515136779316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22213 (or 22211 counting only the distinct ones).

The product of its digits is 7144200, while the sum is 56.

The spelling of 2515136779316 in words is "two trillion, five hundred fifteen billion, one hundred thirty-six million, seven hundred seventy-nine thousand, three hundred sixteen".