83260385890 has 32 divisors (see below), whose sum is σ = 163514272320. Its totient is φ = 30272587200.

The previous prime is 83260385851. The next prime is 83260385921. The reversal of 83260385890 is 9858306238.

It is a happy number.

It is a super-2 number, since 2×83260385890² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 885981 + ... + 975439.

It is an arithmetic number, because the mean of its divisors is an integer number (5109821010).

Almost surely, 2^83260385890 is an apocalyptic number.

83260385890 is a deficient number, since it is larger than the sum of its proper divisors (80253886430).

83260385890 is a wasteful number, since it uses less digits than its factorization.

83260385890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97938.

The product of its (nonzero) digits is 2488320, while the sum is 52.

The spelling of 83260385890 in words is "eighty-three billion, two hundred sixty million, three hundred eighty-five thousand, eight hundred ninety".