13454445431 has 24 divisors (see below), whose sum is σ = 15969569616. Its totient is φ = 11300083200.

The previous prime is 13454445427. The next prime is 13454445469.

13454445431 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 13454445431 - 2² = 13454445427 is a prime.

It is a super-2 number, since 2×13454445431² (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 (13454445421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 466040 + ... + 494066.

It is an arithmetic number, because the mean of its divisors is an integer number (665398734).

Almost surely, 2^13454445431 is an apocalyptic number.

13454445431 is a deficient number, since it is larger than the sum of its proper divisors (2515124185).

13454445431 is a wasteful number, since it uses less digits than its factorization.

13454445431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28239 (or 28232 counting only the distinct ones).

The product of its digits is 230400, while the sum is 38.

The spelling of 13454445431 in words is "thirteen billion, four hundred fifty-four million, four hundred forty-five thousand, four hundred thirty-one".