72289070831 has 2 divisors, whose sum is σ = 72289070832. Its totient is φ = 72289070830.

The previous prime is 72289070809. The next prime is 72289070837. The reversal of 72289070831 is 13807098227.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72289070831 - 2¹⁰ = 72289069807 is a prime.

It is a super-2 number, since 2×72289070831² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72289070837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36144535415 + 36144535416.

It is an arithmetic number, because the mean of its divisors is an integer number (36144535416).

Almost surely, 2^72289070831 is an apocalyptic number.

72289070831 is a deficient number, since it is larger than the sum of its proper divisors (1).

72289070831 is an equidigital number, since it uses as much as digits as its factorization.

72289070831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 338688, while the sum is 47.

The spelling of 72289070831 in words is "seventy-two billion, two hundred eighty-nine million, seventy thousand, eight hundred thirty-one".