54435235689 has 12 divisors (see below), whose sum is σ = 79001324272. Its totient is φ = 36118164600.

The previous prime is 54435235669. The next prime is 54435235691. The reversal of 54435235689 is 98653253445.

It is a happy number.

54435235689 is a `hidden beast` number, since 5 + 44 + 35 + 2 + 3 + 568 + 9 = 666.

It is not a de Polignac number, because 54435235689 - 2¹² = 54435231593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54435235669) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14330707 + ... + 14334504.

Almost surely, 2^54435235689 is an apocalyptic number.

It is an amenable number.

54435235689 is a deficient number, since it is larger than the sum of its proper divisors (24566088583).

54435235689 is a wasteful number, since it uses less digits than its factorization.

54435235689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28665428 (or 28665425 counting only the distinct ones).

The product of its digits is 15552000, while the sum is 54.

The spelling of 54435235689 in words is "fifty-four billion, four hundred thirty-five million, two hundred thirty-five thousand, six hundred eighty-nine".