7276663680 has 512 divisors, whose sum is σ = 28870732800. Its totient is φ = 1531576320.

The previous prime is 7276663679. The next prime is 7276663711. The reversal of 7276663680 is 863666727.

It is a happy number.

It is a super-2 number, since 2×7276663680² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4666741 + ... + 4668299.

It is an arithmetic number, because the mean of its divisors is an integer number (56388150).

Almost surely, 2^7276663680 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7276663680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14435366400).

7276663680 is an abundant number, since it is smaller than the sum of its proper divisors (21594069120).

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

7276663680 is a wasteful number, since it uses less digits than its factorization.

7276663680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1622 (or 1610 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 51.

The square root of 7276663680 is about 85303.3626535320. The cubic root of 7276663680 is about 1937.8081029554.

The spelling of 7276663680 in words is "seven billion, two hundred seventy-six million, six hundred sixty-three thousand, six hundred eighty".