7720512331280 has 160 divisors (see below), whose sum is σ = 21748595619840. Its totient is φ = 2492410798080.

The previous prime is 7720512331253. The next prime is 7720512331283. The reversal of 7720512331280 is 821332150277.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (7720512331283) 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, 5367545 + ... + 6652184.

It is an arithmetic number, because the mean of its divisors is an integer number (135928722624).

Almost surely, 2^{7720512331280} is an apocalyptic number.

7720512331280 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7720512331280 is an abundant number, since it is smaller than the sum of its proper divisors (14028083288560).

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

7720512331280 is a wasteful number, since it uses less digits than its factorization.

7720512331280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12019817 (or 12019811 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 41.

The spelling of 7720512331280 in words is "seven trillion, seven hundred twenty billion, five hundred twelve million, three hundred thirty-one thousand, two hundred eighty".