19000196520 has 64 divisors (see below), whose sum is σ = 57363707520. Its totient is φ = 5034441984.

The previous prime is 19000196513. The next prime is 19000196521. The reversal of 19000196520 is 2569100091.

It is a super-2 number, since 2×19000196520² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19000196521) 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, 485412 + ... + 523091.

It is an arithmetic number, because the mean of its divisors is an integer number (896307930).

Almost surely, 2^19000196520 is an apocalyptic number.

19000196520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19000196520 is an abundant number, since it is smaller than the sum of its proper divisors (38363511000).

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

19000196520 is a wasteful number, since it uses less digits than its factorization.

19000196520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008674 (or 1008670 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 33.

The spelling of 19000196520 in words is "nineteen billion, one hundred ninety-six thousand, five hundred twenty".