19071814770 has 32 divisors (see below), whose sum is σ = 50858173440. Its totient is φ = 5085817200.

The previous prime is 19071814753. The next prime is 19071814781. The reversal of 19071814770 is 7741817091.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35317906 + ... + 35318445.

It is an arithmetic number, because the mean of its divisors is an integer number (1589317920).

Almost surely, 2^19071814770 is an apocalyptic number.

19071814770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19071814770 is an abundant number, since it is smaller than the sum of its proper divisors (31786358670).

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

19071814770 is a wasteful number, since it uses less digits than its factorization.

19071814770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70636367 (or 70636361 counting only the distinct ones).

The product of its (nonzero) digits is 98784, while the sum is 45.

The spelling of 19071814770 in words is "nineteen billion, seventy-one million, eight hundred fourteen thousand, seven hundred seventy".