7716441780 has 96 divisors (see below), whose sum is σ = 25418897280. Its totient is φ = 1936673280.

The previous prime is 7716441769. The next prime is 7716441781. The reversal of 7716441780 is 871446177.

7716441780 is a `hidden beast` number, since 77 + 164 + 417 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7716441781) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 411106 + ... + 429465.

It is an arithmetic number, because the mean of its divisors is an integer number (264780180).

Almost surely, 2^7716441780 is an apocalyptic number.

It is an amenable number.

7716441780 is an abundant number, since it is smaller than the sum of its proper divisors (17702455500).

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

7716441780 is a wasteful number, since it uses less digits than its factorization.

7716441780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840606 (or 840598 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 45.

The square root of 7716441780 is about 87843.2796518891. The cubic root of 7716441780 is about 1976.0853324265.

The spelling of 7716441780 in words is "seven billion, seven hundred sixteen million, four hundred forty-one thousand, seven hundred eighty".