13825118015638 has 8 divisors (see below), whose sum is σ = 21957540377832. Its totient is φ = 6505937889696.

The previous prime is 13825118015629. The next prime is 13825118015641. The reversal of 13825118015638 is 83651081152831.

13825118015638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×13825118015638² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203310559020 + ... + 203310559087.

It is an arithmetic number, because the mean of its divisors is an integer number (2744692547229).

Almost surely, 2^{13825118015638} is an apocalyptic number.

13825118015638 is a deficient number, since it is larger than the sum of its proper divisors (8132422362194).

13825118015638 is a wasteful number, since it uses less digits than its factorization.

13825118015638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406621118126.

The product of its (nonzero) digits is 1382400, while the sum is 52.

The spelling of 13825118015638 in words is "thirteen trillion, eight hundred twenty-five billion, one hundred eighteen million, fifteen thousand, six hundred thirty-eight".