10809746550 has 36 divisors (see below), whose sum is σ = 29042186940. Its totient is φ = 2882598960.

The previous prime is 10809746543. The next prime is 10809746561. The reversal of 10809746550 is 5564790801.

10809746550 is a `hidden beast` number, since 1 + 0 + 8 + 0 + 97 + 4 + 6 + 550 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 10809746496 and 10809746505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 12010380 + ... + 12011279.

It is an arithmetic number, because the mean of its divisors is an integer number (806727415).

Almost surely, 2^10809746550 is an apocalyptic number.

10809746550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10809746550 is an abundant number, since it is smaller than the sum of its proper divisors (18232440390).

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

10809746550 is a wasteful number, since it uses less digits than its factorization.

10809746550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24021677 (or 24021669 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The spelling of 10809746550 in words is "ten billion, eight hundred nine million, seven hundred forty-six thousand, five hundred fifty".