72162340807 has 2 divisors, whose sum is σ = 72162340808. Its totient is φ = 72162340806.

The previous prime is 72162340799. The next prime is 72162340823. The reversal of 72162340807 is 70804326127.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72162340807 - 2³ = 72162340799 is a prime.

It is a super-2 number, since 2×72162340807² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 72162340807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72162340007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36081170403 + 36081170404.

It is an arithmetic number, because the mean of its divisors is an integer number (36081170404).

Almost surely, 2^72162340807 is an apocalyptic number.

72162340807 is a deficient number, since it is larger than the sum of its proper divisors (1).

72162340807 is an equidigital number, since it uses as much as digits as its factorization.

72162340807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112896, while the sum is 40.

The spelling of 72162340807 in words is "seventy-two billion, one hundred sixty-two million, three hundred forty thousand, eight hundred seven".