257011212766 has 32 divisors (see below), whose sum is σ = 483522504192. Its totient is φ = 99534622560.

The previous prime is 257011212751. The next prime is 257011212767. The reversal of 257011212766 is 667212110752.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257011212767) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4971001 + ... + 5022436.

It is an arithmetic number, because the mean of its divisors is an integer number (15110078256).

Almost surely, 2^257011212766 is an apocalyptic number.

257011212766 is a deficient number, since it is larger than the sum of its proper divisors (226511291426).

257011212766 is a wasteful number, since it uses less digits than its factorization.

257011212766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9993624.

The product of its (nonzero) digits is 70560, while the sum is 40.

The spelling of 257011212766 in words is "two hundred fifty-seven billion, eleven million, two hundred twelve thousand, seven hundred sixty-six".