84906383770 has 32 divisors (see below), whose sum is σ = 164839972752. Its totient is φ = 31302008832.

The previous prime is 84906383761. The next prime is 84906383777. The reversal of 84906383770 is 7738360948.

It is a Cunningham number, because it is equal to 291387²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 30566577889 + 54339805881 = 174833^2 + 233109^2 .

It is not an unprimeable number, because it can be changed into a prime (84906383777) by changing a digit.

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, 415207 + ... + 584986.

Almost surely, 2^84906383770 is an apocalyptic number.

84906383770 is a deficient number, since it is larger than the sum of its proper divisors (79933588982).

84906383770 is a wasteful number, since it uses less digits than its factorization.

84906383770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000866.

The product of its (nonzero) digits is 6096384, while the sum is 55.

The spelling of 84906383770 in words is "eighty-four billion, nine hundred six million, three hundred eighty-three thousand, seven hundred seventy".