2439879578740 has 24 divisors (see below), whose sum is σ = 5125405952520. Its totient is φ = 975635862528.

The previous prime is 2439879578707. The next prime is 2439879578777. The reversal of 2439879578740 is 478759789342.

It can be written as a sum of positive squares in 4 ways, for example, as 1474636207716 + 965243371024 = 1214346^2 + 982468^2 .

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, 19684737 + ... + 19808296.

It is an arithmetic number, because the mean of its divisors is an integer number (213558581355).

Almost surely, 2^{2439879578740} is an apocalyptic number.

2439879578740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2439879578740 is an abundant number, since it is smaller than the sum of its proper divisors (2685526373780).

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

2439879578740 is a wasteful number, since it uses less digits than its factorization.

2439879578740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39496131 (or 39496129 counting only the distinct ones).

The product of its (nonzero) digits is 853493760, while the sum is 73.

The spelling of 2439879578740 in words is "two trillion, four hundred thirty-nine billion, eight hundred seventy-nine million, five hundred seventy-eight thousand, seven hundred forty".