19212106734 has 24 divisors (see below), whose sum is σ = 41633471880. Its totient is φ = 6402921648.

The previous prime is 19212106733. The next prime is 19212106751. The reversal of 19212106734 is 43760121291.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19212106733) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17044 + ... + 196760.

It is an arithmetic number, because the mean of its divisors is an integer number (1734727995).

Almost surely, 2^19212106734 is an apocalyptic number.

19212106734 is an abundant number, since it is smaller than the sum of its proper divisors (22421365146).

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

19212106734 is a wasteful number, since it uses less digits than its factorization.

19212106734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185664 (or 185661 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The spelling of 19212106734 in words is "nineteen billion, two hundred twelve million, one hundred six thousand, seven hundred thirty-four".