257734620016 has 40 divisors (see below), whose sum is σ = 501419581200. Its totient is φ = 128336409600.

The previous prime is 257734620007. The next prime is 257734620053. The reversal of 257734620016 is 610026437752.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12044815 + ... + 12066193.

It is an arithmetic number, because the mean of its divisors is an integer number (12535489530).

Almost surely, 2^257734620016 is an apocalyptic number.

It is an amenable number.

257734620016 is a deficient number, since it is larger than the sum of its proper divisors (243684961184).

257734620016 is a wasteful number, since it uses less digits than its factorization.

257734620016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24457 (or 24451 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 43.

The spelling of 257734620016 in words is "two hundred fifty-seven billion, seven hundred thirty-four million, six hundred twenty thousand, sixteen".