2620917915388 has 12 divisors (see below), whose sum is σ = 4615820406232. Its totient is φ = 1302112085040.

The previous prime is 2620917915383. The next prime is 2620917915433. The reversal of 2620917915388 is 8835197190262.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2620917915383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2086717458 + ... + 2086718713.

Almost surely, 2^{2620917915388} is an apocalyptic number.

It is an amenable number.

2620917915388 is a deficient number, since it is larger than the sum of its proper divisors (1994902490844).

2620917915388 is a wasteful number, since it uses less digits than its factorization.

2620917915388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4173436332 (or 4173436330 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 61.

The spelling of 2620917915388 in words is "two trillion, six hundred twenty billion, nine hundred seventeen million, nine hundred fifteen thousand, three hundred eighty-eight".