257776612 has 12 divisors (see below), whose sum is σ = 454355440. Its totient is φ = 127960776.

The previous prime is 257776601. The next prime is 257776619. The reversal of 257776612 is 216677752.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (257776619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231258 + ... + 232369.

Almost surely, 2^257776612 is an apocalyptic number.

It is an amenable number.

257776612 is a deficient number, since it is larger than the sum of its proper divisors (196578828).

257776612 is a wasteful number, since it uses less digits than its factorization.

257776612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463770 (or 463768 counting only the distinct ones).

The product of its digits is 246960, while the sum is 43.

The square root of 257776612 is about 16055.4231336331. The cubic root of 257776612 is about 636.4258878940.

The spelling of 257776612 in words is "two hundred fifty-seven million, seven hundred seventy-six thousand, six hundred twelve".