7791396480 has 768 divisors, whose sum is σ = 33842914560. Its totient is φ = 1672151040.

The previous prime is 7791396467. The next prime is 7791396491. The reversal of 7791396480 is 846931977.

It is a happy number.

7791396480 is a `hidden beast` number, since 7 + 79 + 1 + 3 + 96 + 480 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 18506670 + ... + 18507090.

It is an arithmetic number, because the mean of its divisors is an integer number (44066295).

Almost surely, 2^7791396480 is an apocalyptic number.

7791396480 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7791396480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16921457280).

7791396480 is an abundant number, since it is smaller than the sum of its proper divisors (26051518080).

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

7791396480 is a wasteful number, since it uses less digits than its factorization.

7791396480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479 (or 455 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 54.

The square root of 7791396480 is about 88268.8873839475. The cubic root of 7791396480 is about 1982.4630504837.

The spelling of 7791396480 in words is "seven billion, seven hundred ninety-one million, three hundred ninety-six thousand, four hundred eighty".