72053423742 has 64 divisors (see below), whose sum is σ = 151509625344. Its totient is φ = 22800476160.

The previous prime is 72053423707. The next prime is 72053423749. The reversal of 72053423742 is 24732435027.

It is a self number, because there is not a number n which added to its sum of digits gives 72053423742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72053423749) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10206678 + ... + 10213734.

It is an arithmetic number, because the mean of its divisors is an integer number (2367337896).

Almost surely, 2^72053423742 is an apocalyptic number.

72053423742 is an abundant number, since it is smaller than the sum of its proper divisors (79456201602).

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

72053423742 is a wasteful number, since it uses less digits than its factorization.

72053423742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7633.

The product of its (nonzero) digits is 282240, while the sum is 39.

Adding to 72053423742 its reverse (24732435027), we get a palindrome (96785858769).

The spelling of 72053423742 in words is "seventy-two billion, fifty-three million, four hundred twenty-three thousand, seven hundred forty-two".