19021707052 has 12 divisors (see below), whose sum is σ = 33290584936. Its totient is φ = 9510111360.

The previous prime is 19021707011. The next prime is 19021707053. The reversal of 19021707052 is 25070712091.

It is a junction number, because it is equal to n+sod(n) for n = 19021706999 and 19021707017.

It is not an unprimeable number, because it can be changed into a prime (19021707053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125733 + ... + 232060.

Almost surely, 2^19021707052 is an apocalyptic number.

It is an amenable number.

19021707052 is a deficient number, since it is larger than the sum of its proper divisors (14268877884).

19021707052 is a wasteful number, since it uses less digits than its factorization.

19021707052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371088 (or 371086 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 34.

The spelling of 19021707052 in words is "nineteen billion, twenty-one million, seven hundred seven thousand, fifty-two".