6915044745 has 24 divisors (see below), whose sum is σ = 13698374976. Its totient is φ = 3161163168.

The previous prime is 6915044713. The next prime is 6915044767. The reversal of 6915044745 is 5474405196.

6915044745 is a `hidden beast` number, since 69 + 1 + 504 + 47 + 45 = 666.

It is not a de Polignac number, because 6915044745 - 2⁵ = 6915044713 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6915044745.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10975947 + ... + 10976576.

It is an arithmetic number, because the mean of its divisors is an integer number (570765624).

Almost surely, 2^6915044745 is an apocalyptic number.

It is an amenable number.

6915044745 is a deficient number, since it is larger than the sum of its proper divisors (6783330231).

6915044745 is a wasteful number, since it uses less digits than its factorization.

6915044745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21952541 (or 21952538 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The square root of 6915044745 is about 83156.7480424770. The cubic root of 6915044745 is about 1905.1609221945.

The spelling of 6915044745 in words is "six billion, nine hundred fifteen million, forty-four thousand, seven hundred forty-five".