11809925610 has 64 divisors (see below), whose sum is σ = 33054048000. Its totient is φ = 2699409216.

The previous prime is 11809925609. The next prime is 11809925641. The reversal of 11809925610 is 1652990811.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 563565 + ... + 584144.

It is an arithmetic number, because the mean of its divisors is an integer number (516469500).

Almost surely, 2^11809925610 is an apocalyptic number.

11809925610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11809925610 is an abundant number, since it is smaller than the sum of its proper divisors (21244122390).

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

11809925610 is a wasteful number, since it uses less digits than its factorization.

11809925610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1147740 (or 1147726 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 42.

The spelling of 11809925610 in words is "eleven billion, eight hundred nine million, nine hundred twenty-five thousand, six hundred ten".