2257764766 has 4 divisors (see below), whose sum is σ = 3386647152. Its totient is φ = 1128882382.

The previous prime is 2257764763. The next prime is 2257764767. The reversal of 2257764766 is 6674677522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6674677522 = 2 ⋅3337338761.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2257764763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564441190 + ... + 564441193.

It is an arithmetic number, because the mean of its divisors is an integer number (846661788).

Almost surely, 2^2257764766 is an apocalyptic number.

2257764766 is a deficient number, since it is larger than the sum of its proper divisors (1128882386).

2257764766 is a wasteful number, since it uses less digits than its factorization.

2257764766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128882385.

The product of its digits is 5927040, while the sum is 52.

The square root of 2257764766 is about 47515.9422299506. The cubic root of 2257764766 is about 1311.8763326421.

The spelling of 2257764766 in words is "two billion, two hundred fifty-seven million, seven hundred sixty-four thousand, seven hundred sixty-six".