257892222349 has 16 divisors (see below), whose sum is σ = 268497472320. Its totient is φ = 247515206400.

The previous prime is 257892222317. The next prime is 257892222377. The reversal of 257892222349 is 943222298752.

It is a cyclic number.

It is not a de Polignac number, because 257892222349 - 2⁵ = 257892222317 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 257892222349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257892202349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1043667 + ... + 1266895.

It is an arithmetic number, because the mean of its divisors is an integer number (16781092020).

Almost surely, 2^257892222349 is an apocalyptic number.

It is an amenable number.

257892222349 is a deficient number, since it is larger than the sum of its proper divisors (10605249971).

257892222349 is a wasteful number, since it uses less digits than its factorization.

257892222349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223740.

The product of its digits is 8709120, while the sum is 55.

The spelling of 257892222349 in words is "two hundred fifty-seven billion, eight hundred ninety-two million, two hundred twenty-two thousand, three hundred forty-nine".