72040137336 has 96 divisors (see below), whose sum is σ = 196133857920. Its totient is φ = 23887483200.

The previous prime is 72040137331. The next prime is 72040137341. The reversal of 72040137336 is 63373104027.

It is an interprime number because it is at equal distance from previous prime (72040137331) and next prime (72040137341).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 72040137336.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72040137331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15354751 + ... + 15359441.

It is an arithmetic number, because the mean of its divisors is an integer number (2043061020).

Almost surely, 2^72040137336 is an apocalyptic number.

It is an amenable number.

72040137336 is an abundant number, since it is smaller than the sum of its proper divisors (124093720584).

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

72040137336 is a wasteful number, since it uses less digits than its factorization.

72040137336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5777 (or 5770 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 36.

The spelling of 72040137336 in words is "seventy-two billion, forty million, one hundred thirty-seven thousand, three hundred thirty-six".