13891197535154 has 8 divisors (see below), whose sum is σ = 20836877408748. Its totient is φ = 6945571732240.

The previous prime is 13891197535151. The next prime is 13891197535169. The reversal of 13891197535154 is 45153579119831.

It can be written as a sum of positive squares in 2 ways, for example, as 13804011390625 + 87186144529 = 3715375^2 + 295273^2 .

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

It is not an unprimeable number, because it can be changed into a prime (13891197535151) 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, 12869177 + ... + 13906764.

Almost surely, 2^{13891197535154} is an apocalyptic number.

13891197535154 is a deficient number, since it is larger than the sum of its proper divisors (6945679873594).

13891197535154 is a wasteful number, since it uses less digits than its factorization.

13891197535154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27035340.

The product of its digits is 20412000, while the sum is 62.

The spelling of 13891197535154 in words is "thirteen trillion, eight hundred ninety-one billion, one hundred ninety-seven million, five hundred thirty-five thousand, one hundred fifty-four".