19793325885 has 16 divisors (see below), whose sum is σ = 31676320896. Its totient is φ = 10554107328.

The previous prime is 19793325883. The next prime is 19793325899. The reversal of 19793325885 is 58852339791.

It is not a de Polignac number, because 19793325885 - 2¹ = 19793325883 is a prime.

It is a super-2 number, since 2×19793325885² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19793325883) 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, 74569 + ... + 212478.

It is an arithmetic number, because the mean of its divisors is an integer number (1979770056).

Almost surely, 2^19793325885 is an apocalyptic number.

19793325885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19793325885 is a deficient number, since it is larger than the sum of its proper divisors (11882995011).

19793325885 is a wasteful number, since it uses less digits than its factorization.

19793325885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291652.

The product of its digits is 16329600, while the sum is 60.

The spelling of 19793325885 in words is "nineteen billion, seven hundred ninety-three million, three hundred twenty-five thousand, eight hundred eighty-five".