1013386644392 has 32 divisors (see below), whose sum is σ = 1966544865000. Its totient is φ = 488991111168.

The previous prime is 1013386644353. The next prime is 1013386644427. The reversal of 1013386644392 is 2934466833101.

It can be written as a sum of positive squares in 4 ways, for example, as 650806839076 + 362579805316 = 806726^2 + 602146^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1013386644392.

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, 531917 + ... + 1519772.

Almost surely, 2^{1013386644392} is an apocalyptic number.

It is an amenable number.

1013386644392 is a deficient number, since it is larger than the sum of its proper divisors (953158220608).

1013386644392 is a wasteful number, since it uses less digits than its factorization.

1013386644392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2053853 (or 2053849 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 50.

The spelling of 1013386644392 in words is "one trillion, thirteen billion, three hundred eighty-six million, six hundred forty-four thousand, three hundred ninety-two".