1315439790538 has 32 divisors (see below), whose sum is σ = 1999501056000. Its totient is φ = 648981932544.

The previous prime is 1315439790493. The next prime is 1315439790631. The reversal of 1315439790538 is 8350979345131.

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 in 15 ways as a sum of consecutive naturals, for example, 274104663 + ... + 274109461.

It is an arithmetic number, because the mean of its divisors is an integer number (62484408000).

Almost surely, 2^{1315439790538} is an apocalyptic number.

1315439790538 is a deficient number, since it is larger than the sum of its proper divisors (684061265462).

1315439790538 is a wasteful number, since it uses less digits than its factorization.

1315439790538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8854.

The product of its (nonzero) digits is 12247200, while the sum is 58.

The spelling of 1315439790538 in words is "one trillion, three hundred fifteen billion, four hundred thirty-nine million, seven hundred ninety thousand, five hundred thirty-eight".