72162340799 has 2 divisors, whose sum is σ = 72162340800. Its totient is φ = 72162340798.

The previous prime is 72162340793. The next prime is 72162340807. The reversal of 72162340799 is 99704326127.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72162340799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72162340793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36081170399 + 36081170400.

It is an arithmetic number, because the mean of its divisors is an integer number (36081170400).

Almost surely, 2^72162340799 is an apocalyptic number.

72162340799 is a deficient number, since it is larger than the sum of its proper divisors (1).

72162340799 is an equidigital number, since it uses as much as digits as its factorization.

72162340799 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1143072, while the sum is 50.

The spelling of 72162340799 in words is "seventy-two billion, one hundred sixty-two million, three hundred forty thousand, seven hundred ninety-nine".