13787930393 has 12 divisors (see below), whose sum is σ = 15407800020. Its totient is φ = 12293876736.

The previous prime is 13787930389. The next prime is 13787930417. The reversal of 13787930393 is 39303978731.

It can be written as a sum of positive squares in 2 ways, for example, as 12447418624 + 1340511769 = 111568^2 + 36613^2 .

It is not a de Polignac number, because 13787930393 - 2² = 13787930389 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13787930363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1117208 + ... + 1129481.

It is an arithmetic number, because the mean of its divisors is an integer number (1283983335).

Almost surely, 2^13787930393 is an apocalyptic number.

It is an amenable number.

13787930393 is a deficient number, since it is larger than the sum of its proper divisors (1619869627).

13787930393 is a wasteful number, since it uses less digits than its factorization.

13787930393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2246744 (or 2246725 counting only the distinct ones).

The product of its (nonzero) digits is 2571912, while the sum is 53.

The spelling of 13787930393 in words is "thirteen billion, seven hundred eighty-seven million, nine hundred thirty thousand, three hundred ninety-three".