7122677646 has 128 divisors (see below), whose sum is σ = 17935810560. Its totient is φ = 1838592000.

The previous prime is 7122677641. The next prime is 7122677657. The reversal of 7122677646 is 6467762217.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 7122677595 and 7122677604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7122677641) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3953946 + ... + 3955746.

It is an arithmetic number, because the mean of its divisors is an integer number (140123520).

Almost surely, 2^7122677646 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7122677646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8967905280).

7122677646 is an abundant number, since it is smaller than the sum of its proper divisors (10813132914).

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

7122677646 is a wasteful number, since it uses less digits than its factorization.

7122677646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2050.

The product of its digits is 1185408, while the sum is 48.

The square root of 7122677646 is about 84395.9575216728. The cubic root of 7122677646 is about 1924.0414766741.

The spelling of 7122677646 in words is "seven billion, one hundred twenty-two million, six hundred seventy-seven thousand, six hundred forty-six".