13861857399493 has 8 divisors (see below), whose sum is σ = 13876813441568. Its totient is φ = 13846906008144.

The previous prime is 13861857399469. The next prime is 13861857399527. The reversal of 13861857399493 is 39499375816831.

13861857399493 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 cyclic number.

It is not a de Polignac number, because 13861857399493 - 2⁵ = 13861857399461 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 (13861857399893) 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, 4818271 + ... + 7137187.

It is an arithmetic number, because the mean of its divisors is an integer number (1734601680196).

Almost surely, 2^{13861857399493} is an apocalyptic number.

It is an amenable number.

13861857399493 is a deficient number, since it is larger than the sum of its proper divisors (14956042075).

13861857399493 is a wasteful number, since it uses less digits than its factorization.

13861857399493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2325363.

The product of its digits is 1058158080, while the sum is 76.

The spelling of 13861857399493 in words is "thirteen trillion, eight hundred sixty-one billion, eight hundred fifty-seven million, three hundred ninety-nine thousand, four hundred ninety-three".