2545149786 has 32 divisors (see below), whose sum is σ = 5263392768. Its totient is φ = 819627120.

The previous prime is 2545149773. The next prime is 2545149799. The reversal of 2545149786 is 6879415452.

It is an interprime number because it is at equal distance from previous prime (2545149773) and next prime (2545149799).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101631 + ... + 124173.

It is an arithmetic number, because the mean of its divisors is an integer number (164481024).

Almost surely, 2^2545149786 is an apocalyptic number.

2545149786 is an abundant number, since it is smaller than the sum of its proper divisors (2718242982).

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

2545149786 is a wasteful number, since it uses less digits than its factorization.

2545149786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23186.

The product of its digits is 2419200, while the sum is 51.

The square root of 2545149786 is about 50449.4775592374. The cubic root of 2545149786 is about 1365.3304689003.

The spelling of 2545149786 in words is "two billion, five hundred forty-five million, one hundred forty-nine thousand, seven hundred eighty-six".