72342687744 has 156 divisors (see below), whose sum is σ = 209302984800. Its totient is φ = 24075190272.

The previous prime is 72342687721. The next prime is 72342687763. The reversal of 72342687744 is 44778624327.

72342687744 is a `hidden beast` number, since 72 + 3 + 426 + 87 + 74 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30927727 + ... + 30930065.

It is an arithmetic number, because the mean of its divisors is an integer number (1341685800).

Almost surely, 2^72342687744 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 72342687744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104651492400).

72342687744 is an abundant number, since it is smaller than the sum of its proper divisors (136960297056).

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

72342687744 is a wasteful number, since it uses less digits than its factorization.

72342687744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3208 (or 3183 counting only the distinct ones).

The product of its digits is 12644352, while the sum is 54.

The spelling of 72342687744 in words is "seventy-two billion, three hundred forty-two million, six hundred eighty-seven thousand, seven hundred forty-four".