83455942785 has 16 divisors (see below), whose sum is σ = 141384185856. Its totient is φ = 41891610368.

The previous prime is 83455942747. The next prime is 83455942811. The reversal of 83455942785 is 58724955438.

It is a cyclic number.

It is not a de Polignac number, because 83455942785 - 2⁶ = 83455942721 is a prime.

It is a super-2 number, since 2×83455942785² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163638849 + ... + 163639358.

It is an arithmetic number, because the mean of its divisors is an integer number (8836511616).

Almost surely, 2^83455942785 is an apocalyptic number.

83455942785 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

83455942785 is a deficient number, since it is larger than the sum of its proper divisors (57928243071).

83455942785 is a wasteful number, since it uses less digits than its factorization.

83455942785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327278232.

The product of its digits is 48384000, while the sum is 60.

The spelling of 83455942785 in words is "eighty-three billion, four hundred fifty-five million, nine hundred forty-two thousand, seven hundred eighty-five".