72335949479 has 16 divisors (see below), whose sum is σ = 74192025600. Its totient is φ = 70506400800.

The previous prime is 72335949449. The next prime is 72335949481. The reversal of 72335949479 is 97494953327.

It is a cyclic number.

It is not a de Polignac number, because 72335949479 - 2²⁸ = 72067514023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72335949449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2611754 + ... + 2639304.

It is an arithmetic number, because the mean of its divisors is an integer number (4637001600).

Almost surely, 2^72335949479 is an apocalyptic number.

72335949479 is a deficient number, since it is larger than the sum of its proper divisors (1856076121).

72335949479 is a wasteful number, since it uses less digits than its factorization.

72335949479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28030.

The product of its digits is 51438240, while the sum is 62.

The spelling of 72335949479 in words is "seventy-two billion, three hundred thirty-five million, nine hundred forty-nine thousand, four hundred seventy-nine".