2257661776 has 40 divisors (see below), whose sum is σ = 4691351520. Its totient is φ = 1049233536.

The previous prime is 2257661773. The next prime is 2257661827. The reversal of 2257661776 is 6771667522.

It is a super-2 number, since 2×2257661776² = 10194073389622948352, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2257661773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53950 + ... + 86173.

It is an arithmetic number, because the mean of its divisors is an integer number (117283788).

Almost surely, 2^2257661776 is an apocalyptic number.

It is an amenable number.

2257661776 is an abundant number, since it is smaller than the sum of its proper divisors (2433689744).

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

2257661776 is a wasteful number, since it uses less digits than its factorization.

2257661776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140203 (or 140197 counting only the distinct ones).

The product of its digits is 1481760, while the sum is 49.

The square root of 2257661776 is about 47514.8584760599. The cubic root of 2257661776 is about 1311.8563848601.

The spelling of 2257661776 in words is "two billion, two hundred fifty-seven million, six hundred sixty-one thousand, seven hundred seventy-six".