19206439230 has 64 divisors (see below), whose sum is σ = 50538816000. Its totient is φ = 4632693120.

The previous prime is 19206439229. The next prime is 19206439277. The reversal of 19206439230 is 3293460291.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80565 + ... + 211904.

It is an arithmetic number, because the mean of its divisors is an integer number (789669000).

Almost surely, 2^19206439230 is an apocalyptic number.

19206439230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19206439230 is an abundant number, since it is smaller than the sum of its proper divisors (31332376770).

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

19206439230 is a wasteful number, since it uses less digits than its factorization.

19206439230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292689.

The product of its (nonzero) digits is 69984, while the sum is 39.

The spelling of 19206439230 in words is "nineteen billion, two hundred six million, four hundred thirty-nine thousand, two hundred thirty".