13401894527 has 4 divisors (see below), whose sum is σ = 15316450896. Its totient is φ = 11487338160.

The previous prime is 13401894523. The next prime is 13401894533. The reversal of 13401894527 is 72549810431.

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

It is a cyclic number.

It is not a de Polignac number, because 13401894527 - 2² = 13401894523 is a prime.

It is a super-2 number, since 2×13401894527² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13401894523) 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, 957278174 + ... + 957278187.

It is an arithmetic number, because the mean of its divisors is an integer number (3829112724).

Almost surely, 2^13401894527 is an apocalyptic number.

13401894527 is a deficient number, since it is larger than the sum of its proper divisors (1914556369).

13401894527 is an equidigital number, since it uses as much as digits as its factorization.

13401894527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1914556368.

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 13401894527 in words is "thirteen billion, four hundred one million, eight hundred ninety-four thousand, five hundred twenty-seven".