6313256645 has 12 divisors (see below), whose sum is σ = 7846159620. Its totient is φ = 4876443264.

The previous prime is 6313256627. The next prime is 6313256647. The reversal of 6313256645 is 5466523136.

6313256645 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 149279524 + 6163977121 = 12218^2 + 78511^2 .

It is a de Polignac number, because none of the positive numbers 2^k-6313256645 is a prime.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6313256647) 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, 746480 + ... + 754889.

It is an arithmetic number, because the mean of its divisors is an integer number (653846635).

Almost surely, 2^6313256645 is an apocalyptic number.

It is an amenable number.

6313256645 is a deficient number, since it is larger than the sum of its proper divisors (1532902975).

6313256645 is a wasteful number, since it uses less digits than its factorization.

6313256645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1501432 (or 1501403 counting only the distinct ones).

The product of its digits is 388800, while the sum is 41.

The square root of 6313256645 is about 79456.0044615887. The cubic root of 6313256645 is about 1848.2092869556.

The spelling of 6313256645 in words is "six billion, three hundred thirteen million, two hundred fifty-six thousand, six hundred forty-five".