11423406834 has 160 divisors (see below), whose sum is σ = 30236633856. Its totient is φ = 3155967360.

The previous prime is 11423406811. The next prime is 11423406847. The reversal of 11423406834 is 43860432411.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 4265904 + ... + 4268580.

Almost surely, 2^11423406834 is an apocalyptic number.

11423406834 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11423406834, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15118316928).

11423406834 is an abundant number, since it is smaller than the sum of its proper divisors (18813227022).

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

11423406834 is a wasteful number, since it uses less digits than its factorization.

11423406834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2822 (or 2813 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The spelling of 11423406834 in words is "eleven billion, four hundred twenty-three million, four hundred six thousand, eight hundred thirty-four".