2557180763 has 12 divisors (see below), whose sum is σ = 2666305200. Its totient is φ = 2452311456.

The previous prime is 2557180757. The next prime is 2557180799. The reversal of 2557180763 is 3670817552.

It is a happy number.

It is not a de Polignac number, because 2557180763 - 2¹² = 2557176667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2557180723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 115106 + ... + 135512.

It is an arithmetic number, because the mean of its divisors is an integer number (222192100).

Almost surely, 2^2557180763 is an apocalyptic number.

2557180763 is a deficient number, since it is larger than the sum of its proper divisors (109124437).

2557180763 is a wasteful number, since it uses less digits than its factorization.

2557180763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20614 (or 20585 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 44.

The square root of 2557180763 is about 50568.5748563275. The cubic root of 2557180763 is about 1367.4784033611.

The spelling of 2557180763 in words is "two billion, five hundred fifty-seven million, one hundred eighty thousand, seven hundred sixty-three".