19747234514 has 24 divisors (see below), whose sum is σ = 34668329328. Its totient is φ = 8411172840.

The previous prime is 19747234513. The next prime is 19747234531. The reversal of 19747234514 is 41543274791.

It is not an unprimeable number, because it can be changed into a prime (19747234513) 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, 602132 + ... + 634079.

It is an arithmetic number, because the mean of its divisors is an integer number (1444513722).

Almost surely, 2^19747234514 is an apocalyptic number.

19747234514 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

19747234514 is a deficient number, since it is larger than the sum of its proper divisors (14921094814).

19747234514 is a wasteful number, since it uses less digits than its factorization.

19747234514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1236390 (or 1236383 counting only the distinct ones).

The product of its digits is 846720, while the sum is 47.

The spelling of 19747234514 in words is "nineteen billion, seven hundred forty-seven million, two hundred thirty-four thousand, five hundred fourteen".