19130190786 has 48 divisors (see below), whose sum is σ = 47399000064. Its totient is φ = 5462422272.

The previous prime is 19130190767. The next prime is 19130190787. The reversal of 19130190786 is 68709103191.

19130190786 is a `hidden beast` number, since 191 + 301 + 90 + 78 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (19130190787) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 163890 + ... + 255186.

It is an arithmetic number, because the mean of its divisors is an integer number (987479168).

Almost surely, 2^19130190786 is an apocalyptic number.

19130190786 is an abundant number, since it is smaller than the sum of its proper divisors (28268809278).

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

19130190786 is a wasteful number, since it uses less digits than its factorization.

19130190786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92975 (or 92972 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 45.

The spelling of 19130190786 in words is "nineteen billion, one hundred thirty million, one hundred ninety thousand, seven hundred eighty-six".