7722515130 has 64 divisors (see below), whose sum is σ = 20250476928. Its totient is φ = 1869205760.

The previous prime is 7722515117. The next prime is 7722515131. The reversal of 7722515130 is 315152277.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 7722515091 and 7722515100.

It is not an unprimeable number, because it can be changed into a prime (7722515131) by changing a digit.

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 in 31 ways as a sum of consecutive naturals, for example, 197572 + ... + 233408.

It is an arithmetic number, because the mean of its divisors is an integer number (316413702).

Almost surely, 2^7722515130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7722515130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10125238464).

7722515130 is an abundant number, since it is smaller than the sum of its proper divisors (12527961798).

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

7722515130 is a wasteful number, since it uses less digits than its factorization.

7722515130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36511.

The product of its (nonzero) digits is 14700, while the sum is 33.

The square root of 7722515130 is about 87877.8420877527. The cubic root of 7722515130 is about 1976.6036330857.

The spelling of 7722515130 in words is "seven billion, seven hundred twenty-two million, five hundred fifteen thousand, one hundred thirty".