257455430607 has 8 divisors (see below), whose sum is σ = 343298764080. Its totient is φ = 171624525440.

The previous prime is 257455430591. The next prime is 257455430611. The reversal of 257455430607 is 706034554752.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 257455430607 - 2⁴ = 257455430591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257455430647) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 3058632 + ... + 3141677.

It is an arithmetic number, because the mean of its divisors is an integer number (42912345510).

Almost surely, 2^257455430607 is an apocalyptic number.

257455430607 is a deficient number, since it is larger than the sum of its proper divisors (85843333473).

257455430607 is a wasteful number, since it uses less digits than its factorization.

257455430607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6214153.

The product of its (nonzero) digits is 3528000, while the sum is 48.

The spelling of 257455430607 in words is "two hundred fifty-seven billion, four hundred fifty-five million, four hundred thirty thousand, six hundred seven".