2115712641 has 12 divisors (see below), whose sum is σ = 3281513712. Its totient is φ = 1208978568.

The previous prime is 2115712619. The next prime is 2115712691. The reversal of 2115712641 is 1462175112.

2115712641 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2115712641 - 2¹³ = 2115704449 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2115712599 and 2115712608.

It is not an unprimeable number, because it can be changed into a prime (2115712601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7196155 + ... + 7196448.

It is an arithmetic number, because the mean of its divisors is an integer number (273459476).

Almost surely, 2^2115712641 is an apocalyptic number.

2115712641 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2115712641 is a deficient number, since it is larger than the sum of its proper divisors (1165801071).

2115712641 is a wasteful number, since it uses less digits than its factorization.

2115712641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14392620 (or 14392613 counting only the distinct ones).

The product of its digits is 3360, while the sum is 30.

The square root of 2115712641 is about 45996.8764265575. The cubic root of 2115712641 is about 1283.7650863173.

Adding to 2115712641 its reverse (1462175112), we get a palindrome (3577887753).

The spelling of 2115712641 in words is "two billion, one hundred fifteen million, seven hundred twelve thousand, six hundred forty-one".