172952389459 has 2 divisors, whose sum is σ = 172952389460. Its totient is φ = 172952389458.

The previous prime is 172952389433. The next prime is 172952389469. The reversal of 172952389459 is 954983259271.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 172952389459 - 2⁵ = 172952389427 is a prime.

It is a super-2 number, since 2×172952389459² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 172952389459.

It is not a weakly prime, because it can be changed into another prime (172952389469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86476194729 + 86476194730.

It is an arithmetic number, because the mean of its divisors is an integer number (86476194730).

Almost surely, 2^172952389459 is an apocalyptic number.

172952389459 is a deficient number, since it is larger than the sum of its proper divisors (1).

172952389459 is an equidigital number, since it uses as much as digits as its factorization.

172952389459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48988800, while the sum is 64.

The spelling of 172952389459 in words is "one hundred seventy-two billion, nine hundred fifty-two million, three hundred eighty-nine thousand, four hundred fifty-nine".