72211019639 has 16 divisors (see below), whose sum is σ = 83114242560. Its totient is φ = 62046936000.

The previous prime is 72211019609. The next prime is 72211019659. The reversal of 72211019639 is 93691011227.

It is a cyclic number.

It is not a de Polignac number, because 72211019639 - 2²⁰ = 72209971063 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72211019596 and 72211019605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72211019609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 310742 + ... + 490899.

It is an arithmetic number, because the mean of its divisors is an integer number (5194640160).

Almost surely, 2^72211019639 is an apocalyptic number.

72211019639 is a deficient number, since it is larger than the sum of its proper divisors (10903222921).

72211019639 is a wasteful number, since it uses less digits than its factorization.

72211019639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802102.

The product of its (nonzero) digits is 40824, while the sum is 41.

The spelling of 72211019639 in words is "seventy-two billion, two hundred eleven million, nineteen thousand, six hundred thirty-nine".