19256198620 has 12 divisors (see below), whose sum is σ = 40438017144. Its totient is φ = 7702479440.

The previous prime is 19256198587. The next prime is 19256198629. The reversal of 19256198620 is 2689165291.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19256198629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 481404946 + ... + 481404985.

It is an arithmetic number, because the mean of its divisors is an integer number (3369834762).

Almost surely, 2^19256198620 is an apocalyptic number.

19256198620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19256198620 is an abundant number, since it is smaller than the sum of its proper divisors (21181818524).

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

19256198620 is a wasteful number, since it uses less digits than its factorization.

19256198620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962809940 (or 962809938 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 49.

The spelling of 19256198620 in words is "nineteen billion, two hundred fifty-six million, one hundred ninety-eight thousand, six hundred twenty".