8025775780 has 24 divisors (see below), whose sum is σ = 18386323200. Its totient is φ = 2918463840.

The previous prime is 8025775763. The next prime is 8025775799. The reversal of 8025775780 is 875775208.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18240180 + ... + 18240619.

It is an arithmetic number, because the mean of its divisors is an integer number (766096800).

Almost surely, 2^8025775780 is an apocalyptic number.

It is an amenable number.

8025775780 is an abundant number, since it is smaller than the sum of its proper divisors (10360547420).

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

8025775780 is a wasteful number, since it uses less digits than its factorization.

8025775780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36480819 (or 36480817 counting only the distinct ones).

The product of its (nonzero) digits is 1097600, while the sum is 49.

The square root of 8025775780 is about 89586.6942129243. The cubic root of 8025775780 is about 2002.1456788745.

The spelling of 8025775780 in words is "eight billion, twenty-five million, seven hundred seventy-five thousand, seven hundred eighty".