247088885085 has 96 divisors (see below), whose sum is σ = 493855315200. Its totient is φ = 111946650624.

The previous prime is 247088885053. The next prime is 247088885179. The reversal of 247088885085 is 580588880742.

247088885085 is a `hidden beast` number, since 2 + 47 + 0 + 8 + 8 + 88 + 508 + 5 = 666.

It is not a de Polignac number, because 247088885085 - 2⁵ = 247088885053 is a prime.

It is a super-2 number, since 2×247088885085² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 21913009 + ... + 21924281.

It is an arithmetic number, because the mean of its divisors is an integer number (5144326200).

Almost surely, 2^247088885085 is an apocalyptic number.

It is an amenable number.

247088885085 is a deficient number, since it is larger than the sum of its proper divisors (246766430115).

247088885085 is a wasteful number, since it uses less digits than its factorization.

247088885085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11907 (or 11904 counting only the distinct ones).

The product of its (nonzero) digits is 45875200, while the sum is 63.

The spelling of 247088885085 in words is "two hundred forty-seven billion, eighty-eight million, eight hundred eighty-five thousand, eighty-five".