18435954786 has 16 divisors (see below), whose sum is σ = 36934730784. Its totient is φ = 6134848064.

The previous prime is 18435954767. The next prime is 18435954833. The reversal of 18435954786 is 68745953481.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2613735 + ... + 2620778.

It is an arithmetic number, because the mean of its divisors is an integer number (2308420674).

Almost surely, 2^18435954786 is an apocalyptic number.

18435954786 is an abundant number, since it is smaller than the sum of its proper divisors (18498775998).

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

18435954786 is a wasteful number, since it uses less digits than its factorization.

18435954786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5235105.

The product of its digits is 29030400, while the sum is 60.

The spelling of 18435954786 in words is "eighteen billion, four hundred thirty-five million, nine hundred fifty-four thousand, seven hundred eighty-six".