83051185778805 has 32 divisors (see below), whose sum is σ = 133980596342784. Its totient is φ = 43928005556736.

The previous prime is 83051185778789. The next prime is 83051185778839. The reversal of 83051185778805 is 50887758115038.

It is a happy number.

It is not a de Polignac number, because 83051185778805 - 2⁴ = 83051185778789 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3653832 + ... + 13396001.

It is an arithmetic number, because the mean of its divisors is an integer number (4186893635712).

Almost surely, 2^{83051185778805} is an apocalyptic number.

It is an amenable number.

83051185778805 is a deficient number, since it is larger than the sum of its proper divisors (50929410563979).

83051185778805 is a wasteful number, since it uses less digits than its factorization.

83051185778805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17052525.

The product of its (nonzero) digits is 75264000, while the sum is 66.

The spelling of 83051185778805 in words is "eighty-three trillion, fifty-one billion, one hundred eighty-five million, seven hundred seventy-eight thousand, eight hundred five".