72331534002 has 128 divisors (see below), whose sum is σ = 182096732160. Its totient is φ = 18647366400.

The previous prime is 72331533991. The next prime is 72331534031. The reversal of 72331534002 is 20043513327.

It is a super-2 number, since 2×72331534002² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4348233 + ... + 4364835.

It is an arithmetic number, because the mean of its divisors is an integer number (1422630720).

Almost surely, 2^72331534002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72331534002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91048366080).

72331534002 is an abundant number, since it is smaller than the sum of its proper divisors (109765198158).

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

72331534002 is a wasteful number, since it uses less digits than its factorization.

72331534002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16808.

The product of its (nonzero) digits is 15120, while the sum is 30.

The spelling of 72331534002 in words is "seventy-two billion, three hundred thirty-one million, five hundred thirty-four thousand, two".