72105337724 has 24 divisors (see below), whose sum is σ = 149183459040. Its totient is φ = 29836691136.

The previous prime is 72105337723. The next prime is 72105337729. The reversal of 72105337724 is 42773350127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72105337723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44399027 + ... + 44400650.

It is an arithmetic number, because the mean of its divisors is an integer number (6215977460).

Almost surely, 2^72105337724 is an apocalyptic number.

It is an amenable number.

72105337724 is an abundant number, since it is smaller than the sum of its proper divisors (77078121316).

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

72105337724 is a wasteful number, since it uses less digits than its factorization.

72105337724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88799717 (or 88799715 counting only the distinct ones).

The product of its (nonzero) digits is 246960, while the sum is 41.

The spelling of 72105337724 in words is "seventy-two billion, one hundred five million, three hundred thirty-seven thousand, seven hundred twenty-four".