2539445984 has 12 divisors (see below), whose sum is σ = 4999534344. Its totient is φ = 1269722976.

The previous prime is 2539445957. The next prime is 2539445999. The reversal of 2539445984 is 4895449352.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39678812 + ... + 39678875.

It is an arithmetic number, because the mean of its divisors is an integer number (416627862).

Almost surely, 2^2539445984 is an apocalyptic number.

It is an amenable number.

2539445984 is a deficient number, since it is larger than the sum of its proper divisors (2460088360).

2539445984 is an equidigital number, since it uses as much as digits as its factorization.

2539445984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79357697 (or 79357689 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 53.

The square root of 2539445984 is about 50392.9160100901. The cubic root of 2539445984 is about 1364.3097824954.

The spelling of 2539445984 in words is "two billion, five hundred thirty-nine million, four hundred forty-five thousand, nine hundred eighty-four".