19750686000 has 80 divisors (see below), whose sum is σ = 63676231008. Its totient is φ = 5266848000.

The previous prime is 19750685959. The next prime is 19750686001. The reversal of 19750686000 is 68605791.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (19750686001) 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, 1639891 + ... + 1651890.

Almost surely, 2^19750686000 is an apocalyptic number.

19750686000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19750686000 is an abundant number, since it is smaller than the sum of its proper divisors (43925545008).

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

19750686000 is a wasteful number, since it uses less digits than its factorization.

19750686000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3291807 (or 3291791 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The spelling of 19750686000 in words is "nineteen billion, seven hundred fifty million, six hundred eighty-six thousand".