152949173985 has 12 divisors (see below), whose sum is σ = 265111901652. Its totient is φ = 81572892768.

The previous prime is 152949173933. The next prime is 152949173989. The reversal of 152949173985 is 589371949251.

152949173985 is a `hidden beast` number, since 1 + 52 + 9 + 491 + 7 + 3 + 98 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 112889952081 + 40059221904 = 335991^2 + 200148^2 .

It is not a de Polignac number, because 152949173985 - 2²⁰ = 152948125409 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (152949173989) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1699435222 + ... + 1699435311.

It is an arithmetic number, because the mean of its divisors is an integer number (22092658471).

Almost surely, 2^152949173985 is an apocalyptic number.

152949173985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

152949173985 is a deficient number, since it is larger than the sum of its proper divisors (112162727667).

152949173985 is a wasteful number, since it uses less digits than its factorization.

152949173985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3398870544 (or 3398870541 counting only the distinct ones).

The product of its digits is 24494400, while the sum is 63.

The spelling of 152949173985 in words is "one hundred fifty-two billion, nine hundred forty-nine million, one hundred seventy-three thousand, nine hundred eighty-five".