2539479248464 has 10 divisors (see below), whose sum is σ = 4920241043930. Its totient is φ = 1269739624224.

The previous prime is 2539479248441. The next prime is 2539479248473. The reversal of 2539479248464 is 4648429749352.

It can be written as a sum of positive squares in only one way, i.e., 2425208206864 + 114271041600 = 1557308^2 + 338040^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2539479248464.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79358726499 + ... + 79358726530.

It is an arithmetic number, because the mean of its divisors is an integer number (492024104393).

Almost surely, 2^{2539479248464} is an apocalyptic number.

It is an amenable number.

2539479248464 is a deficient number, since it is larger than the sum of its proper divisors (2380761795466).

2539479248464 is a wasteful number, since it uses less digits than its factorization.

2539479248464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158717453037 (or 158717453031 counting only the distinct ones).

The product of its digits is 418037760, while the sum is 67.

The spelling of 2539479248464 in words is "two trillion, five hundred thirty-nine billion, four hundred seventy-nine million, two hundred forty-eight thousand, four hundred sixty-four".