19598797935 has 16 divisors (see below), whose sum is σ = 34842307680. Its totient is φ = 10452692160.

The previous prime is 19598797931. The next prime is 19598797943. The reversal of 19598797935 is 53979789591.

It is not a de Polignac number, because 19598797935 - 2² = 19598797931 is a prime.

It is a super-2 number, since 2×19598797935² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19598797931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72588006 + ... + 72588275.

It is an arithmetic number, because the mean of its divisors is an integer number (2177644230).

Almost surely, 2^19598797935 is an apocalyptic number.

19598797935 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

19598797935 is a deficient number, since it is larger than the sum of its proper divisors (15243509745).

19598797935 is a wasteful number, since it uses less digits than its factorization.

19598797935 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145176295 (or 145176289 counting only the distinct ones).

The product of its digits is 192893400, while the sum is 72.

The spelling of 19598797935 in words is "nineteen billion, five hundred ninety-eight million, seven hundred ninety-seven thousand, nine hundred thirty-five".