19898648010 has 48 divisors (see below), whose sum is σ = 51786810504. Its totient is φ = 5301144576.

The previous prime is 19898647981. The next prime is 19898648023. The reversal of 19898648010 is 1084689891.

19898648010 is a `hidden beast` number, since 1 + 9 + 89 + 86 + 480 + 1 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 19795645809 + 103002201 = 140697^2 + 10149^2 .

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, 14047 + ... + 199986.

Almost surely, 2^19898648010 is an apocalyptic number.

19898648010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19898648010 is an abundant number, since it is smaller than the sum of its proper divisors (31888162494).

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

19898648010 is a wasteful number, since it uses less digits than its factorization.

19898648010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215079 (or 215076 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 54.

The spelling of 19898648010 in words is "nineteen billion, eight hundred ninety-eight million, six hundred forty-eight thousand, ten".