272197906789 has 2 divisors, whose sum is σ = 272197906790. Its totient is φ = 272197906788.

The previous prime is 272197906709. The next prime is 272197906819. The reversal of 272197906789 is 987609791272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 261368382564 + 10829524225 = 511242^2 + 104065^2 .

It is a cyclic number.

It is not a de Polignac number, because 272197906789 - 2³³ = 263607972197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (272197906709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136098953394 + 136098953395.

It is an arithmetic number, because the mean of its divisors is an integer number (136098953395).

Almost surely, 2^272197906789 is an apocalyptic number.

It is an amenable number.

272197906789 is a deficient number, since it is larger than the sum of its proper divisors (1).

272197906789 is an equidigital number, since it uses as much as digits as its factorization.

272197906789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48009024, while the sum is 67.

The spelling of 272197906789 in words is "two hundred seventy-two billion, one hundred ninety-seven million, nine hundred six thousand, seven hundred eighty-nine".