11903689834 has 8 divisors (see below), whose sum is σ = 17856661860. Its totient is φ = 5951469216.

The previous prime is 11903689793. The next prime is 11903689843. The reversal of 11903689834 is 43898630911.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11665080025 + 238609809 = 108005^2 + 15447^2 .

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

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, 146419 + ... + 212710.

Almost surely, 2^11903689834 is an apocalyptic number.

11903689834 is a deficient number, since it is larger than the sum of its proper divisors (5952972026).

11903689834 is a wasteful number, since it uses less digits than its factorization.

11903689834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375704.

The product of its (nonzero) digits is 1119744, while the sum is 52.

The spelling of 11903689834 in words is "eleven billion, nine hundred three million, six hundred eighty-nine thousand, eight hundred thirty-four".