2545766685 has 128 divisors (see below), whose sum is σ = 5795942400. Its totient is φ = 1029231360.

The previous prime is 2545766669. The next prime is 2545766723. The reversal of 2545766685 is 5866675452.

It is not a de Polignac number, because 2545766685 - 2⁴ = 2545766669 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 381306 + ... + 387924.

It is an arithmetic number, because the mean of its divisors is an integer number (45280800).

Almost surely, 2^2545766685 is an apocalyptic number.

It is an amenable number.

2545766685 is an abundant number, since it is smaller than the sum of its proper divisors (3250175715).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2545766685 is a wasteful number, since it uses less digits than its factorization.

2545766685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6688 (or 6682 counting only the distinct ones).

The product of its digits is 12096000, while the sum is 54.

The square root of 2545766685 is about 50455.5912164351. The cubic root of 2545766685 is about 1365.4407705892.

The spelling of 2545766685 in words is "two billion, five hundred forty-five million, seven hundred sixty-six thousand, six hundred eighty-five".