19494737230 has 16 divisors (see below), whose sum is σ = 36038920320. Its totient is φ = 7587140832.

The previous prime is 19494737201. The next prime is 19494737231. The reversal of 19494737230 is 3273749491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19494737231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26343870 + ... + 26344609.

It is an arithmetic number, because the mean of its divisors is an integer number (2252432520).

Almost surely, 2^19494737230 is an apocalyptic number.

19494737230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19494737230 is a deficient number, since it is larger than the sum of its proper divisors (16544183090).

19494737230 is a wasteful number, since it uses less digits than its factorization.

19494737230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52688523.

The product of its (nonzero) digits is 1143072, while the sum is 49.

The spelling of 19494737230 in words is "nineteen billion, four hundred ninety-four million, seven hundred thirty-seven thousand, two hundred thirty".