8212610778 has 16 divisors (see below), whose sum is σ = 16587848736. Its totient is φ = 2710432400.

The previous prime is 8212610729. The next prime is 8212610779. The reversal of 8212610778 is 8770162128.

It is not an unprimeable number, because it can be changed into a prime (8212610779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6775476 + ... + 6776687.

It is an arithmetic number, because the mean of its divisors is an integer number (1036740546).

Almost surely, 2^8212610778 is an apocalyptic number.

8212610778 is an abundant number, since it is smaller than the sum of its proper divisors (8375237958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8212610778 is a wasteful number, since it uses less digits than its factorization.

8212610778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13552269.

The product of its (nonzero) digits is 75264, while the sum is 42.

The square root of 8212610778 is about 90623.4560033990. The cubic root of 8212610778 is about 2017.5628859061.

The spelling of 8212610778 in words is "eight billion, two hundred twelve million, six hundred ten thousand, seven hundred seventy-eight".