172952389469 has 2 divisors, whose sum is σ = 172952389470. Its totient is φ = 172952389468.

The previous prime is 172952389459. The next prime is 172952389567. The reversal of 172952389469 is 964983259271.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94594383844 + 78358005625 = 307562^2 + 279925^2 .

It is a cyclic number.

It is not a de Polignac number, because 172952389469 - 2¹² = 172952385373 is a prime.

It is a super-3 number, since 3×172952389469³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172952389459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86476194734 + 86476194735.

It is an arithmetic number, because the mean of its divisors is an integer number (86476194735).

Almost surely, 2^172952389469 is an apocalyptic number.

It is an amenable number.

172952389469 is a deficient number, since it is larger than the sum of its proper divisors (1).

172952389469 is an equidigital number, since it uses as much as digits as its factorization.

172952389469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58786560, while the sum is 65.

The spelling of 172952389469 in words is "one hundred seventy-two billion, nine hundred fifty-two million, three hundred eighty-nine thousand, four hundred sixty-nine".