231928233985 has 48 divisors (see below), whose sum is σ = 334481909760. Its totient is φ = 153774875520.

The previous prime is 231928233959. The next prime is 231928233997. The reversal of 231928233985 is 589332829132.

It is a Cunningham number, because it is equal to 6144³+1.

It is not a de Polignac number, because 231928233985 - 2¹⁵ = 231928201217 is a prime.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9321832 + ... + 9346678.

It is an arithmetic number, because the mean of its divisors is an integer number (6968373120).

It is a Proth number, since it is equal to 27 ⋅ 2³³ + 1 and 27 < 2³³.

Almost surely, 2^231928233985 is an apocalyptic number.

It is an amenable number.

231928233985 is a deficient number, since it is larger than the sum of its proper divisors (102553675775).

231928233985 is a wasteful number, since it uses less digits than its factorization.

231928233985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26126 (or 26119 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 55.

The spelling of 231928233985 in words is "two hundred thirty-one billion, nine hundred twenty-eight million, two hundred thirty-three thousand, nine hundred eighty-five".