72323063251 has 2 divisors, whose sum is σ = 72323063252. Its totient is φ = 72323063250.

The previous prime is 72323063231. The next prime is 72323063287. The reversal of 72323063251 is 15236032327.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72323063251 - 2⁷ = 72323063123 is a prime.

It is not a weakly prime, because it can be changed into another prime (72323063231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36161531625 + 36161531626.

It is an arithmetic number, because the mean of its divisors is an integer number (36161531626).

Almost surely, 2^72323063251 is an apocalyptic number.

72323063251 is a deficient number, since it is larger than the sum of its proper divisors (1).

72323063251 is an equidigital number, since it uses as much as digits as its factorization.

72323063251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 34.

Adding to 72323063251 its reverse (15236032327), we get a palindrome (87559095578).

The spelling of 72323063251 in words is "seventy-two billion, three hundred twenty-three million, sixty-three thousand, two hundred fifty-one".