257051621676716 has 24 divisors (see below), whose sum is σ = 451047114216720. Its totient is φ = 128181047484672.

The previous prime is 257051621676691. The next prime is 257051621676719. The reversal of 257051621676716 is 617676126150752.

It is not an unprimeable number, because it can be changed into a prime (257051621676719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30807776 + ... + 38252088.

It is an arithmetic number, because the mean of its divisors is an integer number (18793629759030).

Almost surely, 2^{257051621676716} is an apocalyptic number.

It is an amenable number.

257051621676716 is a deficient number, since it is larger than the sum of its proper divisors (193995492540004).

257051621676716 is a wasteful number, since it uses less digits than its factorization.

257051621676716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7467473 (or 7467471 counting only the distinct ones).

The product of its (nonzero) digits is 44452800, while the sum is 62.

The spelling of 257051621676716 in words is "two hundred fifty-seven trillion, fifty-one billion, six hundred twenty-one million, six hundred seventy-six thousand, seven hundred sixteen".