2539489772 has 6 divisors (see below), whose sum is σ = 4444107108. Its totient is φ = 1269744884.

The previous prime is 2539489769. The next prime is 2539489787. The reversal of 2539489772 is 2779849352.

It is a super-2 number, since 2×2539489772² = 12898016604185223968, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317436218 + ... + 317436225.

It is an arithmetic number, because the mean of its divisors is an integer number (740684518).

Almost surely, 2^2539489772 is an apocalyptic number.

It is an amenable number.

2539489772 is a deficient number, since it is larger than the sum of its proper divisors (1904617336).

2539489772 is a wasteful number, since it uses less digits than its factorization.

2539489772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634872447 (or 634872445 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 56.

The square root of 2539489772 is about 50393.3504740457. The cubic root of 2539489772 is about 1364.3176241078.

The spelling of 2539489772 in words is "two billion, five hundred thirty-nine million, four hundred eighty-nine thousand, seven hundred seventy-two".