2439742886864 has 10 divisors (see below), whose sum is σ = 4727001843330. Its totient is φ = 1219871443424.

The previous prime is 2439742886849. The next prime is 2439742886881. The reversal of 2439742886864 is 4686882479342.

It can be written as a sum of positive squares in only one way, i.e., 1374306046864 + 1065436840000 = 1172308^2 + 1032200^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76241965199 + ... + 76241965230.

It is an arithmetic number, because the mean of its divisors is an integer number (472700184333).

Almost surely, 2^{2439742886864} is an apocalyptic number.

It is an amenable number.

2439742886864 is a deficient number, since it is larger than the sum of its proper divisors (2287258956466).

2439742886864 is a wasteful number, since it uses less digits than its factorization.

2439742886864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152483930437 (or 152483930431 counting only the distinct ones).

The product of its digits is 891813888, while the sum is 71.

The spelling of 2439742886864 in words is "two trillion, four hundred thirty-nine billion, seven hundred forty-two million, eight hundred eighty-six thousand, eight hundred sixty-four".