13445854431 has 32 divisors (see below), whose sum is σ = 19138790400. Its totient is φ = 8372108160.

The previous prime is 13445854417. The next prime is 13445854459.

13445854431 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 13445854431 - 2⁹ = 13445853919 is a prime.

It is a super-2 number, since 2×13445854431² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13445804431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3695145 + ... + 3698781.

It is an arithmetic number, because the mean of its divisors is an integer number (598087200).

Almost surely, 2^13445854431 is an apocalyptic number.

13445854431 is a deficient number, since it is larger than the sum of its proper divisors (5692935969).

13445854431 is a wasteful number, since it uses less digits than its factorization.

13445854431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4559.

The product of its digits is 460800, while the sum is 42.

The spelling of 13445854431 in words is "thirteen billion, four hundred forty-five million, eight hundred fifty-four thousand, four hundred thirty-one".