257386877046004 has 6 divisors (see below), whose sum is σ = 450427034830514. Its totient is φ = 128693438523000.

The previous prime is 257386877045981. The next prime is 257386877046097. The reversal of 257386877046004 is 400640778683752.

It can be written as a sum of positive squares in only one way, i.e., 256444929154404 + 941947891600 = 16013898^2 + 970540^2 .

It is a super-2 number, since 2×257386877046004² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32173359630747 + ... + 32173359630754.

Almost surely, 2^{257386877046004} is an apocalyptic number.

It is an amenable number.

257386877046004 is a deficient number, since it is larger than the sum of its proper divisors (193040157784510).

257386877046004 is a wasteful number, since it uses less digits than its factorization.

257386877046004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64346719261505 (or 64346719261503 counting only the distinct ones).

The product of its (nonzero) digits is 379330560, while the sum is 67.

The spelling of 257386877046004 in words is "two hundred fifty-seven trillion, three hundred eighty-six billion, eight hundred seventy-seven million, forty-six thousand, four".