2557086499967 has 4 divisors (see below), whose sum is σ = 2557264225560. Its totient is φ = 2556908774376.

The previous prime is 2557086499901. The next prime is 2557086499973. The reversal of 2557086499967 is 7699946807552.

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

It is a cyclic number.

It is not a de Polignac number, because 2557086499967 - 2¹⁴ = 2557086483583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2557086499367) 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, 88841213 + ... + 88869990.

It is an arithmetic number, because the mean of its divisors is an integer number (639316056390).

Almost surely, 2^{2557086499967} is an apocalyptic number.

2557086499967 is a deficient number, since it is larger than the sum of its proper divisors (177725593).

2557086499967 is a wasteful number, since it uses less digits than its factorization.

2557086499967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177725592.

The product of its (nonzero) digits is 2057529600, while the sum is 77.

The spelling of 2557086499967 in words is "two trillion, five hundred fifty-seven billion, eighty-six million, four hundred ninety-nine thousand, nine hundred sixty-seven".