7473677780 has 72 divisors (see below), whose sum is σ = 16596318816. Its totient is φ = 2825444160.

The previous prime is 7473677779. The next prime is 7473677789. The reversal of 7473677780 is 877763747.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7473677789) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 821939 + ... + 830981.

It is an arithmetic number, because the mean of its divisors is an integer number (230504428).

Almost surely, 2^7473677780 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 7473677780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8298159408).

7473677780 is an abundant number, since it is smaller than the sum of its proper divisors (9122641036).

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

7473677780 is a wasteful number, since it uses less digits than its factorization.

7473677780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9157 (or 9124 counting only the distinct ones).

The product of its (nonzero) digits is 9680832, while the sum is 56.

The square root of 7473677780 is about 86450.4353950864. The cubic root of 7473677780 is about 1955.1411806652.

The spelling of 7473677780 in words is "seven billion, four hundred seventy-three million, six hundred seventy-seven thousand, seven hundred eighty".