19275967998 has 72 divisors (see below), whose sum is σ = 49406886360. Its totient is φ = 5414058720.

The previous prime is 19275967993. The next prime is 19275968009. The reversal of 19275967998 is 89976957291.

19275967998 is a `hidden beast` number, since 1 + 9 + 27 + 596 + 7 + 9 + 9 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19275967993) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 133173 + ... + 237248.

It is an arithmetic number, because the mean of its divisors is an integer number (686206755).

Almost surely, 2^19275967998 is an apocalyptic number.

19275967998 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

19275967998 is an abundant number, since it is smaller than the sum of its proper divisors (30130918362).

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

19275967998 is a wasteful number, since it uses less digits than its factorization.

19275967998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370502 (or 370492 counting only the distinct ones).

The product of its digits is 154314720, while the sum is 72.

The spelling of 19275967998 in words is "nineteen billion, two hundred seventy-five million, nine hundred sixty-seven thousand, nine hundred ninety-eight".