83445317890 has 16 divisors (see below), whose sum is σ = 163856260800. Its totient is φ = 30343751920.

The previous prime is 83445317867. The next prime is 83445317899. The reversal of 83445317890 is 9871354438.

It is not an unprimeable number, because it can be changed into a prime (83445317899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 379296790 + ... + 379297009.

It is an arithmetic number, because the mean of its divisors is an integer number (10241016300).

Almost surely, 2^83445317890 is an apocalyptic number.

83445317890 is a deficient number, since it is larger than the sum of its proper divisors (80410942910).

83445317890 is a wasteful number, since it uses less digits than its factorization.

83445317890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758593817.

The product of its (nonzero) digits is 2903040, while the sum is 52.

The spelling of 83445317890 in words is "eighty-three billion, four hundred forty-five million, three hundred seventeen thousand, eight hundred ninety".