72392833861 has 2 divisors, whose sum is σ = 72392833862. Its totient is φ = 72392833860.

The previous prime is 72392833771. The next prime is 72392833873. The reversal of 72392833861 is 16833829327.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45238737636 + 27154096225 = 212694^2 + 164785^2 .

It is a cyclic number.

It is not a de Polignac number, because 72392833861 - 2¹¹ = 72392831813 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72392833799 and 72392833808.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72392833061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36196416930 + 36196416931.

It is an arithmetic number, because the mean of its divisors is an integer number (36196416931).

Almost surely, 2^72392833861 is an apocalyptic number.

It is an amenable number.

72392833861 is a deficient number, since it is larger than the sum of its proper divisors (1).

72392833861 is an equidigital number, since it uses as much as digits as its factorization.

72392833861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2612736, while the sum is 52.

The spelling of 72392833861 in words is "seventy-two billion, three hundred ninety-two million, eight hundred thirty-three thousand, eight hundred sixty-one".