2057911804751 has 4 divisors (see below), whose sum is σ = 2244994696104. Its totient is φ = 1870828913400.

The previous prime is 2057911804733. The next prime is 2057911804813. The reversal of 2057911804751 is 1574081197502.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2057911804751 is a prime.

It is a super-2 number, since 2×2057911804751² (a number of 25 digits) contains 22 as substring.

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 2057911804751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2057911804651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93541445660 + ... + 93541445681.

It is an arithmetic number, because the mean of its divisors is an integer number (561248674026).

Almost surely, 2^{2057911804751} is an apocalyptic number.

2057911804751 is a deficient number, since it is larger than the sum of its proper divisors (187082891353).

2057911804751 is a wasteful number, since it uses less digits than its factorization.

2057911804751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187082891352.

The product of its (nonzero) digits is 705600, while the sum is 50.

The spelling of 2057911804751 in words is "two trillion, fifty-seven billion, nine hundred eleven million, eight hundred four thousand, seven hundred fifty-one".