8251474945 has 32 divisors (see below), whose sum is σ = 12021292800. Its totient is φ = 5311132416.

The previous prime is 8251474927. The next prime is 8251474949. The reversal of 8251474945 is 5494741528.

It is a cyclic number.

It is not a de Polignac number, because 8251474945 - 2¹³ = 8251466753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8251474949) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15567 + ... + 129403.

It is an arithmetic number, because the mean of its divisors is an integer number (375665400).

Almost surely, 2^8251474945 is an apocalyptic number.

It is an amenable number.

8251474945 is a deficient number, since it is larger than the sum of its proper divisors (3769817855).

8251474945 is a wasteful number, since it uses less digits than its factorization.

8251474945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113977.

The product of its digits is 1612800, while the sum is 49.

The square root of 8251474945 is about 90837.6295650652. The cubic root of 8251474945 is about 2020.7404194340.

The spelling of 8251474945 in words is "eight billion, two hundred fifty-one million, four hundred seventy-four thousand, nine hundred forty-five".