72707426227 has 2 divisors, whose sum is σ = 72707426228. Its totient is φ = 72707426226.

The previous prime is 72707426173. The next prime is 72707426321. The reversal of 72707426227 is 72262470727.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72707426227 is a prime.

It is not a weakly prime, because it can be changed into another prime (72707429227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36353713113 + 36353713114.

It is an arithmetic number, because the mean of its divisors is an integer number (36353713114).

Almost surely, 2^72707426227 is an apocalyptic number.

72707426227 is a deficient number, since it is larger than the sum of its proper divisors (1).

72707426227 is an equidigital number, since it uses as much as digits as its factorization.

72707426227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 921984, while the sum is 46.

The spelling of 72707426227 in words is "seventy-two billion, seven hundred seven million, four hundred twenty-six thousand, two hundred twenty-seven".