72204901469 has 2 divisors, whose sum is σ = 72204901470. Its totient is φ = 72204901468.

The previous prime is 72204901459. The next prime is 72204901493. The reversal of 72204901469 is 96410940227.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71711484100 + 493417369 = 267790^2 + 22213^2 .

It is a cyclic number.

It is not a de Polignac number, because 72204901469 - 2²⁰ = 72203852893 is a prime.

It is a super-2 number, since 2×72204901469² (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 (72204901409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36102450734 + 36102450735.

It is an arithmetic number, because the mean of its divisors is an integer number (36102450735).

Almost surely, 2^72204901469 is an apocalyptic number.

It is an amenable number.

72204901469 is a deficient number, since it is larger than the sum of its proper divisors (1).

72204901469 is an equidigital number, since it uses as much as digits as its factorization.

72204901469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 44.

The spelling of 72204901469 in words is "seventy-two billion, two hundred four million, nine hundred one thousand, four hundred sixty-nine".