2645115951 has 24 divisors (see below), whose sum is σ = 3842333184. Its totient is φ = 1616688720.

The previous prime is 2645115923. The next prime is 2645115953. The reversal of 2645115951 is 1595115462.

2645115951 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2645115951 - 2⁶ = 2645115887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2645115953) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5821 + ... + 72966.

It is an arithmetic number, because the mean of its divisors is an integer number (160097216).

Almost surely, 2^2645115951 is an apocalyptic number.

2645115951 is a deficient number, since it is larger than the sum of its proper divisors (1197217233).

2645115951 is a wasteful number, since it uses less digits than its factorization.

2645115951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78859 (or 78840 counting only the distinct ones).

The product of its digits is 54000, while the sum is 39.

The square root of 2645115951 is about 51430.6907497848. The cubic root of 2645115951 is about 1382.9768322282.

The spelling of 2645115951 in words is "two billion, six hundred forty-five million, one hundred fifteen thousand, nine hundred fifty-one".