2576957985 has 96 divisors (see below), whose sum is σ = 5186218752. Its totient is φ = 1159441920.

The previous prime is 2576957983. The next prime is 2576958029. The reversal of 2576957985 is 5897596752.

2576957985 is a `hidden beast` number, since 2 + 57 + 6 + 9 + 579 + 8 + 5 = 666.

It is not a de Polignac number, because 2576957985 - 2¹ = 2576957983 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (2576957983) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8129047 + ... + 8129363.

It is an arithmetic number, because the mean of its divisors is an integer number (54023112).

Almost surely, 2^2576957985 is an apocalyptic number.

It is an amenable number.

2576957985 is an abundant number, since it is smaller than the sum of its proper divisors (2609260767).

2576957985 is a wasteful number, since it uses less digits than its factorization.

2576957985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663 (or 660 counting only the distinct ones).

The product of its digits is 47628000, while the sum is 63.

The square root of 2576957985 is about 50763.7467588830. The cubic root of 2576957985 is about 1370.9947106717.

The spelling of 2576957985 in words is "two billion, five hundred seventy-six million, nine hundred fifty-seven thousand, nine hundred eighty-five".