7720140867600 has 120 divisors (see below), whose sum is σ = 28263068121280. Its totient is φ = 1764603624960.

The previous prime is 7720140867589. The next prime is 7720140867641. The reversal of 7720140867600 is 67680410277.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 7720140867600.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 459523795 + ... + 459540594.

Almost surely, 2^{7720140867600} is an apocalyptic number.

7720140867600 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7720140867600 is an abundant number, since it is smaller than the sum of its proper divisors (20542927253680).

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

7720140867600 is a wasteful number, since it uses less digits than its factorization.

7720140867600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919064417 (or 919064406 counting only the distinct ones).

The product of its (nonzero) digits is 790272, while the sum is 48.

The spelling of 7720140867600 in words is "seven trillion, seven hundred twenty billion, one hundred forty million, eight hundred sixty-seven thousand, six hundred".