2577666423 has 8 divisors (see below), whose sum is σ = 3439088128. Its totient is φ = 1717344504.

The previous prime is 2577666389. The next prime is 2577666437. The reversal of 2577666423 is 3246667752.

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

It is not a de Polignac number, because 2577666423 - 2⁶ = 2577666359 is a prime.

It is a super-2 number, since 2×2577666423² = 13288728376523229858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2577666473) 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, 269461 + ... + 278862.

It is an arithmetic number, because the mean of its divisors is an integer number (429886016).

Almost surely, 2^2577666423 is an apocalyptic number.

2577666423 is a deficient number, since it is larger than the sum of its proper divisors (861421705).

2577666423 is a wasteful number, since it uses less digits than its factorization.

2577666423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549893.

The product of its digits is 2540160, while the sum is 48.

The square root of 2577666423 is about 50770.7240740173. The cubic root of 2577666423 is about 1371.1203336951.

The spelling of 2577666423 in words is "two billion, five hundred seventy-seven million, six hundred sixty-six thousand, four hundred twenty-three".