54431213445 has 96 divisors (see below), whose sum is σ = 117851535360. Its totient is φ = 22663618560.

The previous prime is 54431213443. The next prime is 54431213467.

54431213445 is a `hidden beast` number, since 5 + 4 + 431 + 213 + 4 + 4 + 5 = 666.

54431213445 is nontrivially palindromic in base 10.

54431213445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 54431213445 - 2¹ = 54431213443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54431213443) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2061 + ... + 329949.

It is an arithmetic number, because the mean of its divisors is an integer number (1227620160).

Almost surely, 2^54431213445 is an apocalyptic number.

It is an amenable number.

54431213445 is an abundant number, since it is smaller than the sum of its proper divisors (63420321915).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54431213445 is a wasteful number, since it uses less digits than its factorization.

54431213445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327955 (or 327952 counting only the distinct ones).

The product of its digits is 115200, while the sum is 36.

The spelling of 54431213445 in words is "fifty-four billion, four hundred thirty-one million, two hundred thirteen thousand, four hundred forty-five".