257078656714 has 64 divisors (see below), whose sum is σ = 452651950080. Its totient is φ = 108350424000.

The previous prime is 257078656693. The next prime is 257078656739. The reversal of 257078656714 is 417656870752.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2541307 + ... + 2640529.

It is an arithmetic number, because the mean of its divisors is an integer number (7072686720).

Almost surely, 2^257078656714 is an apocalyptic number.

257078656714 is a deficient number, since it is larger than the sum of its proper divisors (195573293366).

257078656714 is a wasteful number, since it uses less digits than its factorization.

257078656714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99427.

The product of its (nonzero) digits is 19756800, while the sum is 58.

The spelling of 257078656714 in words is "two hundred fifty-seven billion, seventy-eight million, six hundred fifty-six thousand, seven hundred fourteen".