7122621164 has 6 divisors (see below), whose sum is σ = 12464587044. Its totient is φ = 3561310580.

The previous prime is 7122621161. The next prime is 7122621167. The reversal of 7122621164 is 4611262217.

It is an interprime number because it is at equal distance from previous prime (7122621161) and next prime (7122621167).

It is a self number, because there is not a number n which added to its sum of digits gives 7122621164.

It is not an unprimeable number, because it can be changed into a prime (7122621161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 890327642 + ... + 890327649.

It is an arithmetic number, because the mean of its divisors is an integer number (2077431174).

Almost surely, 2^7122621164 is an apocalyptic number.

It is an amenable number.

7122621164 is a deficient number, since it is larger than the sum of its proper divisors (5341965880).

7122621164 is a wasteful number, since it uses less digits than its factorization.

7122621164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1780655295 (or 1780655293 counting only the distinct ones).

The product of its digits is 8064, while the sum is 32.

The square root of 7122621164 is about 84395.6228959773. The cubic root of 7122621164 is about 1924.0363908528.

The spelling of 7122621164 in words is "seven billion, one hundred twenty-two million, six hundred twenty-one thousand, one hundred sixty-four".