72042957312 has 160 divisors (see below), whose sum is σ = 193641034752. Its totient is φ = 23801032704.

The previous prime is 72042957277. The next prime is 72042957319. The reversal of 72042957312 is 21375924027.

It is not an unprimeable number, because it can be changed into a prime (72042957319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127962343 + ... + 127962905.

Almost surely, 2^72042957312 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 72042957312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96820517376).

72042957312 is an abundant number, since it is smaller than the sum of its proper divisors (121598077440).

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

72042957312 is a wasteful number, since it uses less digits than its factorization.

72042957312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1178 (or 1162 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 42.

The spelling of 72042957312 in words is "seventy-two billion, forty-two million, nine hundred fifty-seven thousand, three hundred twelve".