72435853427 has 12 divisors (see below), whose sum is σ = 85643464896. Its totient is φ = 61070037840.

The previous prime is 72435853349. The next prime is 72435853487.

72435853427 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 72435853427 - 2¹⁴ = 72435837043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72435853487) 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, 12114083 + ... + 12120060.

It is an arithmetic number, because the mean of its divisors is an integer number (7136955408).

Almost surely, 2^72435853427 is an apocalyptic number.

72435853427 is a deficient number, since it is larger than the sum of its proper divisors (13207611469).

72435853427 is a wasteful number, since it uses less digits than its factorization.

72435853427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24234218 (or 24234211 counting only the distinct ones).

The product of its digits is 5644800, while the sum is 50.

The spelling of 72435853427 in words is "seventy-two billion, four hundred thirty-five million, eight hundred fifty-three thousand, four hundred twenty-seven".