193985672860 has 24 divisors (see below), whose sum is σ = 465565615200. Its totient is φ = 66509373504.

The previous prime is 193985672849. The next prime is 193985672863. The reversal of 193985672860 is 68276589391.

It is a junction number, because it is equal to n+sod(n) for n = 193985672792 and 193985672801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193985672863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 692805835 + ... + 692806114.

It is an arithmetic number, because the mean of its divisors is an integer number (19398567300).

Almost surely, 2^193985672860 is an apocalyptic number.

193985672860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

193985672860 is an abundant number, since it is smaller than the sum of its proper divisors (271579942340).

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

193985672860 is a wasteful number, since it uses less digits than its factorization.

193985672860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1385611965 (or 1385611963 counting only the distinct ones).

The product of its (nonzero) digits is 39191040, while the sum is 64.

The spelling of 193985672860 in words is "one hundred ninety-three billion, nine hundred eighty-five million, six hundred seventy-two thousand, eight hundred sixty".