257802580049 has 16 divisors (see below), whose sum is σ = 297424752768. Its totient is φ = 218879267712.

The previous prime is 257802580043. The next prime is 257802580099. The reversal of 257802580049 is 940085208752.

It is not a de Polignac number, because 257802580049 - 2¹⁶ = 257802514513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 257802579979 and 257802580006.

It is not an unprimeable number, because it can be changed into a prime (257802580043) 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, 7050077 + ... + 7086549.

It is an arithmetic number, because the mean of its divisors is an integer number (18589047048).

Almost surely, 2^257802580049 is an apocalyptic number.

It is an amenable number.

257802580049 is a deficient number, since it is larger than the sum of its proper divisors (39622172719).

257802580049 is a wasteful number, since it uses less digits than its factorization.

257802580049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46024.

The product of its (nonzero) digits is 1612800, while the sum is 50.

The spelling of 257802580049 in words is "two hundred fifty-seven billion, eight hundred two million, five hundred eighty thousand, forty-nine".