2560257858890 has 32 divisors (see below), whose sum is σ = 4800767685120. Its totient is φ = 981975182400.

The previous prime is 2560257858793. The next prime is 2560257858901. The reversal of 2560257858890 is 988587520652.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37851056 + ... + 37918635.

It is an arithmetic number, because the mean of its divisors is an integer number (150023990160).

Almost surely, 2^{2560257858890} is an apocalyptic number.

2560257858890 is a deficient number, since it is larger than the sum of its proper divisors (2240509826230).

2560257858890 is a wasteful number, since it uses less digits than its factorization.

2560257858890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75769838.

The product of its (nonzero) digits is 96768000, while the sum is 65.

The spelling of 2560257858890 in words is "two trillion, five hundred sixty billion, two hundred fifty-seven million, eight hundred fifty-eight thousand, eight hundred ninety".