72371542236 has 96 divisors (see below), whose sum is σ = 200595494400. Its totient is φ = 19876264704.

The previous prime is 72371542219. The next prime is 72371542237. The reversal of 72371542236 is 63224517327.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72371542237) 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, 117690 + ... + 398238.

It is an arithmetic number, because the mean of its divisors is an integer number (2089536400).

Almost surely, 2^72371542236 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72371542236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100297747200).

72371542236 is an abundant number, since it is smaller than the sum of its proper divisors (128223952164).

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

72371542236 is a wasteful number, since it uses less digits than its factorization.

72371542236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280683 (or 280681 counting only the distinct ones).

The product of its digits is 423360, while the sum is 42.

The spelling of 72371542236 in words is "seventy-two billion, three hundred seventy-one million, five hundred forty-two thousand, two hundred thirty-six".