83854057866 has 16 divisors (see below), whose sum is σ = 167717913888. Its totient is φ = 27949719600.

The previous prime is 83854057813. The next prime is 83854057913. The reversal of 83854057866 is 66875045838.

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, 294565 + ... + 504456.

It is an arithmetic number, because the mean of its divisors is an integer number (10482369618).

Almost surely, 2^83854057866 is an apocalyptic number.

83854057866 is an abundant number, since it is smaller than the sum of its proper divisors (83863856022).

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

83854057866 is a wasteful number, since it uses less digits than its factorization.

83854057866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816517.

The product of its (nonzero) digits is 38707200, while the sum is 60.

The spelling of 83854057866 in words is "eighty-three billion, eight hundred fifty-four million, fifty-seven thousand, eight hundred sixty-six".