19397818088 has 32 divisors (see below), whose sum is σ = 39700458720. Its totient is φ = 8812056000.

The previous prime is 19397818073. The next prime is 19397818103. The reversal of 19397818088 is 88081879391.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (19397818073) and next prime (19397818103).

It is a super-3 number, since 3×19397818088³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 19397818088.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89903 + ... + 216513.

It is an arithmetic number, because the mean of its divisors is an integer number (1240639335).

Almost surely, 2^19397818088 is an apocalyptic number.

It is an amenable number.

19397818088 is an abundant number, since it is smaller than the sum of its proper divisors (20302640632).

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

19397818088 is a wasteful number, since it uses less digits than its factorization.

19397818088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128369 (or 128365 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 62.

The spelling of 19397818088 in words is "nineteen billion, three hundred ninety-seven million, eight hundred eighteen thousand, eighty-eight".