2546979988 has 24 divisors (see below), whose sum is σ = 5095137600. Its totient is φ = 1091310528.

The previous prime is 2546979977. The next prime is 2546979997. The reversal of 2546979988 is 8899796452.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163023 + ... + 177961.

It is an arithmetic number, because the mean of its divisors is an integer number (212297400).

Almost surely, 2^2546979988 is an apocalyptic number.

2546979988 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2546979988 is an abundant number, since it is smaller than the sum of its proper divisors (2548157612).

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

2546979988 is a wasteful number, since it uses less digits than its factorization.

2546979988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21039 (or 21037 counting only the distinct ones).

The product of its digits is 78382080, while the sum is 67.

The square root of 2546979988 is about 50467.6132584056. The cubic root of 2546979988 is about 1365.6576574798.

The spelling of 2546979988 in words is "two billion, five hundred forty-six million, nine hundred seventy-nine thousand, nine hundred eighty-eight".