11642185850 has 48 divisors (see below), whose sum is σ = 21830875800. Its totient is φ = 4619047680.

The previous prime is 11642185843. The next prime is 11642185861. The reversal of 11642185850 is 5858124611.

It can be written as a sum of positive squares in 12 ways, for example, as 2260907401 + 9381278449 = 47549^2 + 96857^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11642185798 and 11642185807.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6506756 + ... + 6508544.

Almost surely, 2^11642185850 is an apocalyptic number.

11642185850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11642185850 is a deficient number, since it is larger than the sum of its proper divisors (10188689950).

11642185850 is a wasteful number, since it uses less digits than its factorization.

11642185850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2787 (or 2782 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 41.

The spelling of 11642185850 in words is "eleven billion, six hundred forty-two million, one hundred eighty-five thousand, eight hundred fifty".