5115261645 has 64 divisors (see below), whose sum is σ = 9813807360. Its totient is φ = 2513016576.

The previous prime is 5115261637. The next prime is 5115261647. The reversal of 5115261645 is 5461625115.

5115261645 is a `hidden beast` number, since 5 + 1 + 1 + 5 + 2 + 6 + 1 + 645 = 666.

It is not a de Polignac number, because 5115261645 - 2³ = 5115261637 is a prime.

It is a super-3 number, since 3×5115261645³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5115261647) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 915079 + ... + 920651.

It is an arithmetic number, because the mean of its divisors is an integer number (153340740).

Almost surely, 2^5115261645 is an apocalyptic number.

It is an amenable number.

5115261645 is a deficient number, since it is larger than the sum of its proper divisors (4698545715).

5115261645 is a wasteful number, since it uses less digits than its factorization.

5115261645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6123 (or 6117 counting only the distinct ones).

The product of its digits is 36000, while the sum is 36.

The square root of 5115261645 is about 71521.0573537612. The cubic root of 5115261645 is about 1723.0158964430.

The spelling of 5115261645 in words is "five billion, one hundred fifteen million, two hundred sixty-one thousand, six hundred forty-five".