2570700021257 has 4 divisors (see below), whose sum is σ = 2570939100180. Its totient is φ = 2570460942336.

The previous prime is 2570700021229. The next prime is 2570700021341. The reversal of 2570700021257 is 7521200070752.

2570700021257 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2268264917776 + 302435103481 = 1506076^2 + 549941^2 .

It is a cyclic number.

It is not a de Polignac number, because 2570700021257 - 2¹⁶ = 2570699955721 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2570700021257.

It is not an unprimeable number, because it can be changed into a prime (2570702021257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119523332 + ... + 119544837.

It is an arithmetic number, because the mean of its divisors is an integer number (642734775045).

Almost surely, 2^{2570700021257} is an apocalyptic number.

It is an amenable number.

2570700021257 is a deficient number, since it is larger than the sum of its proper divisors (239078923).

2570700021257 is a wasteful number, since it uses less digits than its factorization.

2570700021257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239078922.

The product of its (nonzero) digits is 68600, while the sum is 38.

The spelling of 2570700021257 in words is "two trillion, five hundred seventy billion, seven hundred million, twenty-one thousand, two hundred fifty-seven".