2566746982077 has 8 divisors (see below), whose sum is σ = 3425477730816. Its totient is φ = 1709590444032.

The previous prime is 2566746982061. The next prime is 2566746982091. The reversal of 2566746982077 is 7702896476652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2566746982077 - 2⁴ = 2566746982061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2566746983077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 393548868 + ... + 393555389.

It is an arithmetic number, because the mean of its divisors is an integer number (428184716352).

Almost surely, 2^{2566746982077} is an apocalyptic number.

It is an amenable number.

2566746982077 is a deficient number, since it is larger than the sum of its proper divisors (858730748739).

2566746982077 is a wasteful number, since it uses less digits than its factorization.

2566746982077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787105347.

The product of its (nonzero) digits is 426746880, while the sum is 69.

The spelling of 2566746982077 in words is "two trillion, five hundred sixty-six billion, seven hundred forty-six million, nine hundred eighty-two thousand, seventy-seven".