13003929493 has 4 divisors (see below), whose sum is σ = 13768866540. Its totient is φ = 12238992448.

The previous prime is 13003929487. The next prime is 13003929511. The reversal of 13003929493 is 39492930031.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5396077764 + 7607851729 = 73458^2 + 87223^2 .

It is a cyclic number.

It is not a de Polignac number, because 13003929493 - 2¹⁷ = 13003798421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13003929443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 382468498 + ... + 382468531.

It is an arithmetic number, because the mean of its divisors is an integer number (3442216635).

Almost surely, 2^13003929493 is an apocalyptic number.

It is an amenable number.

13003929493 is a deficient number, since it is larger than the sum of its proper divisors (764937047).

13003929493 is an equidigital number, since it uses as much as digits as its factorization.

13003929493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764937046.

The product of its (nonzero) digits is 157464, while the sum is 43.

The spelling of 13003929493 in words is "thirteen billion, three million, nine hundred twenty-nine thousand, four hundred ninety-three".