72435053427 has 128 divisors (see below), whose sum is σ = 120296448000. Its totient is φ = 38224327680.

The previous prime is 72435053423. The next prime is 72435053441.

72435053427 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 72435053427 - 2² = 72435053423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72435053423) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 158500983 + ... + 158501439.

It is an arithmetic number, because the mean of its divisors is an integer number (939816000).

Almost surely, 2^72435053427 is an apocalyptic number.

72435053427 is a deficient number, since it is larger than the sum of its proper divisors (47861394573).

72435053427 is a wasteful number, since it uses less digits than its factorization.

72435053427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921.

The product of its (nonzero) digits is 705600, while the sum is 42.

It can be divided in two parts, 724350 and 53427, that added together give a palindrome (777777).

The spelling of 72435053427 in words is "seventy-two billion, four hundred thirty-five million, fifty-three thousand, four hundred twenty-seven".