7138748403524 has 12 divisors (see below), whose sum is σ = 12509312762604. Its totient is φ = 3564659042784.

The previous prime is 7138748403497. The next prime is 7138748403571. The reversal of 7138748403524 is 4253048478317.

It can be written as a sum of positive squares in 2 ways, for example, as 4071234352900 + 3067514050624 = 2017730^2 + 1751432^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 7138748403524.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1178786339 + ... + 1178792394.

It is an arithmetic number, because the mean of its divisors is an integer number (1042442730217).

Almost surely, 2^{7138748403524} is an apocalyptic number.

It is an amenable number.

7138748403524 is a deficient number, since it is larger than the sum of its proper divisors (5370564359080).

7138748403524 is a wasteful number, since it uses less digits than its factorization.

7138748403524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2357579494 (or 2357579492 counting only the distinct ones).

The product of its (nonzero) digits is 18063360, while the sum is 56.

The spelling of 7138748403524 in words is "seven trillion, one hundred thirty-eight billion, seven hundred forty-eight million, four hundred three thousand, five hundred twenty-four".