72211765899 has 64 divisors (see below), whose sum is σ = 121433489408. Its totient is φ = 37149840000.

The previous prime is 72211765891. The next prime is 72211765907. The reversal of 72211765899 is 99856711227.

It is an interprime number because it is at equal distance from previous prime (72211765891) and next prime (72211765907).

It is not a de Polignac number, because 72211765899 - 2³ = 72211765891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72211765891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8811894 + ... + 8820084.

It is an arithmetic number, because the mean of its divisors is an integer number (1897398272).

Almost surely, 2^72211765899 is an apocalyptic number.

72211765899 is a deficient number, since it is larger than the sum of its proper divisors (49221723509).

72211765899 is a wasteful number, since it uses less digits than its factorization.

72211765899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9008.

The product of its digits is 3810240, while the sum is 57.

The spelling of 72211765899 in words is "seventy-two billion, two hundred eleven million, seven hundred sixty-five thousand, eight hundred ninety-nine".