7122611868 has 48 divisors (see below), whose sum is σ = 16759693440. Its totient is φ = 2354209344.

The previous prime is 7122611861. The next prime is 7122611887. The reversal of 7122611868 is 8681162217.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7122611861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1660855 + ... + 1665137.

It is an arithmetic number, because the mean of its divisors is an integer number (349160280).

Almost surely, 2^7122611868 is an apocalyptic number.

It is an amenable number.

7122611868 is an abundant number, since it is smaller than the sum of its proper divisors (9637081572).

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

7122611868 is a wasteful number, since it uses less digits than its factorization.

7122611868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5426 (or 5424 counting only the distinct ones).

The product of its digits is 64512, while the sum is 42.

The square root of 7122611868 is about 84395.5678220130. The cubic root of 7122611868 is about 1924.0355538084.

The spelling of 7122611868 in words is "seven billion, one hundred twenty-two million, six hundred eleven thousand, eight hundred sixty-eight".