13618432933957 has 4 divisors (see below), whose sum is σ = 14335192562080. Its totient is φ = 12901673305836.

The previous prime is 13618432933949. The next prime is 13618432933969. The reversal of 13618432933957 is 75933923481631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13618432933957 - 2³ = 13618432933949 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 (13618432963957) 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 3 ways as a sum of consecutive naturals, for example, 358379814033 + ... + 358379814070.

It is an arithmetic number, because the mean of its divisors is an integer number (3583798140520).

Almost surely, 2^{13618432933957} is an apocalyptic number.

It is an amenable number.

13618432933957 is a deficient number, since it is larger than the sum of its proper divisors (716759628123).

13618432933957 is an equidigital number, since it uses as much as digits as its factorization.

13618432933957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716759628122.

The product of its digits is 88179840, while the sum is 64.

The spelling of 13618432933957 in words is "thirteen trillion, six hundred eighteen billion, four hundred thirty-two million, nine hundred thirty-three thousand, nine hundred fifty-seven".