6511257260 has 12 divisors (see below), whose sum is σ = 13673640288. Its totient is φ = 2604502896.

The previous prime is 6511257251. The next prime is 6511257271. The reversal of 6511257260 is 627521156.

It is a super-2 number, since 2×6511257260² = 84792942211805415200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6511257260.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162781412 + ... + 162781451.

It is an arithmetic number, because the mean of its divisors is an integer number (1139470024).

Almost surely, 2^6511257260 is an apocalyptic number.

It is an amenable number.

6511257260 is an abundant number, since it is smaller than the sum of its proper divisors (7162383028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6511257260 is a wasteful number, since it uses less digits than its factorization.

6511257260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325562872 (or 325562870 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 6511257260 is about 80692.3618442291. The cubic root of 6511257260 is about 1867.3323377714.

The spelling of 6511257260 in words is "six billion, five hundred eleven million, two hundred fifty-seven thousand, two hundred sixty".