23051085840 has 160 divisors (see below), whose sum is σ = 81544364160. Its totient is φ = 5980801536.

The previous prime is 23051085839. The next prime is 23051085907. The reversal of 23051085840 is 4858015032.

It is a happy number.

23051085840 is a `hidden beast` number, since 23 + 0 + 51 + 0 + 8 + 584 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 23051085795 and 23051085804.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64294 + ... + 224133.

It is an arithmetic number, because the mean of its divisors is an integer number (509652276).

Almost surely, 2^23051085840 is an apocalyptic number.

23051085840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23051085840 is an abundant number, since it is smaller than the sum of its proper divisors (58493278320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23051085840 is a wasteful number, since it uses less digits than its factorization.

23051085840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288486 (or 288474 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The spelling of 23051085840 in words is "twenty-three billion, fifty-one million, eighty-five thousand, eight hundred forty".