19820267368 has 32 divisors (see below), whose sum is σ = 40546980000. Its totient is φ = 9007984960.

The previous prime is 19820267359. The next prime is 19820267497. The reversal of 19820267368 is 86376202891.

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, 1059843 + ... + 1078381.

It is an arithmetic number, because the mean of its divisors is an integer number (1267093125).

Almost surely, 2^19820267368 is an apocalyptic number.

It is an amenable number.

19820267368 is an abundant number, since it is smaller than the sum of its proper divisors (20726712632).

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

19820267368 is a wasteful number, since it uses less digits than its factorization.

19820267368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30705 (or 30701 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 52.

The spelling of 19820267368 in words is "nineteen billion, eight hundred twenty million, two hundred sixty-seven thousand, three hundred sixty-eight".