19850986224 has 100 divisors (see below), whose sum is σ = 60834258144. Its totient is φ = 6227753472.

The previous prime is 19850986219. The next prime is 19850986229. The reversal of 19850986224 is 42268905891.

It is a happy number.

19850986224 is a `hidden beast` number, since 1 + 9 + 8 + 5 + 0 + 9 + 8 + 622 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (19850986219) and next prime (19850986229).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19850986229) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 428472 + ... + 472535.

Almost surely, 2^19850986224 is an apocalyptic number.

It is an amenable number.

19850986224 is an abundant number, since it is smaller than the sum of its proper divisors (40983271920).

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

19850986224 is a wasteful number, since it uses less digits than its factorization.

19850986224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901044 (or 901029 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 54.

The spelling of 19850986224 in words is "nineteen billion, eight hundred fifty million, nine hundred eighty-six thousand, two hundred twenty-four".