7770541680 has 320 divisors, whose sum is σ = 29990937600. Its totient is φ = 1832647680.

The previous prime is 7770541661. The next prime is 7770541703. The reversal of 7770541680 is 861450777.

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

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, 874701 + ... + 883539.

It is an arithmetic number, because the mean of its divisors is an integer number (93721680).

Almost surely, 2^7770541680 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 7770541680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14995468800).

7770541680 is an abundant number, since it is smaller than the sum of its proper divisors (22220395920).

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

7770541680 is a wasteful number, since it uses less digits than its factorization.

7770541680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8909 (or 8897 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 45.

The square root of 7770541680 is about 88150.6760042145. The cubic root of 7770541680 is about 1980.6926869338.

The spelling of 7770541680 in words is "seven billion, seven hundred seventy million, five hundred forty-one thousand, six hundred eighty".