72750722212506 has 128 divisors (see below), whose sum is σ = 163068355731456. Its totient is φ = 21486471402240.

The previous prime is 72750722212499. The next prime is 72750722212517. The reversal of 72750722212506 is 60521222705727.

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, 213559245 + ... + 213899631.

It is an arithmetic number, because the mean of its divisors is an integer number (1273971529152).

Almost surely, 2^{72750722212506} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72750722212506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81534177865728).

72750722212506 is an abundant number, since it is smaller than the sum of its proper divisors (90317633518950).

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

72750722212506 is a wasteful number, since it uses less digits than its factorization.

72750722212506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341156.

The product of its (nonzero) digits is 1646400, while the sum is 48.

The spelling of 72750722212506 in words is "seventy-two trillion, seven hundred fifty billion, seven hundred twenty-two million, two hundred twelve thousand, five hundred six".