13057043993 has 8 divisors (see below), whose sum is σ = 14977811520. Its totient is φ = 11150145360.

The previous prime is 13057043981. The next prime is 13057043999. The reversal of 13057043993 is 39934075031.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13057043993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13057043999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3465203 + ... + 3468968.

It is an arithmetic number, because the mean of its divisors is an integer number (1872226440).

Almost surely, 2^13057043993 is an apocalyptic number.

It is an amenable number.

13057043993 is a deficient number, since it is larger than the sum of its proper divisors (1920767527).

13057043993 is an equidigital number, since it uses as much as digits as its factorization.

13057043993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6934447.

The product of its (nonzero) digits is 306180, while the sum is 44.

The spelling of 13057043993 in words is "thirteen billion, fifty-seven million, forty-three thousand, nine hundred ninety-three".