8212137064 has 8 divisors (see below), whose sum is σ = 15397757010. Its totient is φ = 4106068528.

The previous prime is 8212137049. The next prime is 8212137071. The reversal of 8212137064 is 4607312128.

It can be written as a sum of positive squares in only one way, i.e., 5202736900 + 3009400164 = 72130^2 + 54858^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 513258559 + ... + 513258574.

Almost surely, 2^8212137064 is an apocalyptic number.

It is an amenable number.

8212137064 is a deficient number, since it is larger than the sum of its proper divisors (7185619946).

8212137064 is a wasteful number, since it uses less digits than its factorization.

8212137064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1026517139 (or 1026517135 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 8212137064 is about 90620.8423266966. The cubic root of 8212137064 is about 2017.5240932822.

The spelling of 8212137064 in words is "eight billion, two hundred twelve million, one hundred thirty-seven thousand, sixty-four".