19390684034 has 8 divisors (see below), whose sum is σ = 29107214460. Its totient is φ = 9688279216.

The previous prime is 19390684021. The next prime is 19390684051. The reversal of 19390684034 is 43048609391.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 17848158409 + 1542525625 = 133597^2 + 39275^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 19390684034.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3527969 + ... + 3533460.

Almost surely, 2^19390684034 is an apocalyptic number.

19390684034 is a deficient number, since it is larger than the sum of its proper divisors (9716530426).

19390684034 is a wasteful number, since it uses less digits than its factorization.

19390684034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7062804.

The product of its (nonzero) digits is 559872, while the sum is 47.

The spelling of 19390684034 in words is "nineteen billion, three hundred ninety million, six hundred eighty-four thousand, thirty-four".