72411607545989 has 2 divisors, whose sum is σ = 72411607545990. Its totient is φ = 72411607545988.

The previous prime is 72411607545971. The next prime is 72411607546021. The reversal of 72411607545989 is 98954570611427.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56438332377025 + 15973275168964 = 7512545^2 + 3996658^2 .

It is a cyclic number.

It is not a de Polignac number, because 72411607545989 - 2²⁰ = 72411606497413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72411607565989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36205803772994 + 36205803772995.

It is an arithmetic number, because the mean of its divisors is an integer number (36205803772995).

Almost surely, 2^{72411607545989} is an apocalyptic number.

It is an amenable number.

72411607545989 is a deficient number, since it is larger than the sum of its proper divisors (1).

72411607545989 is an equidigital number, since it uses as much as digits as its factorization.

72411607545989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 152409600, while the sum is 68.

The spelling of 72411607545989 in words is "seventy-two trillion, four hundred eleven billion, six hundred seven million, five hundred forty-five thousand, nine hundred eighty-nine".