72493992499 has 2 divisors, whose sum is σ = 72493992500. Its totient is φ = 72493992498.

The previous prime is 72493992479. The next prime is 72493992533. The reversal of 72493992499 is 99429939427.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72493992499 - 2⁹ = 72493991987 is a prime.

It is not a weakly prime, because it can be changed into another prime (72493992479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36246996249 + 36246996250.

It is an arithmetic number, because the mean of its divisors is an integer number (36246996250).

Almost surely, 2^72493992499 is an apocalyptic number.

72493992499 is a deficient number, since it is larger than the sum of its proper divisors (1).

72493992499 is an equidigital number, since it uses as much as digits as its factorization.

72493992499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 79361856, while the sum is 67.

The spelling of 72493992499 in words is "seventy-two billion, four hundred ninety-three million, nine hundred ninety-two thousand, four hundred ninety-nine".