7778325250 has 64 divisors (see below), whose sum is σ = 14986363392. Its totient is φ = 3021168000.

The previous prime is 7778325229. The next prime is 7778325293. The reversal of 7778325250 is 525238777.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 7778325250.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2325079 + ... + 2328421.

It is an arithmetic number, because the mean of its divisors is an integer number (234161928).

Almost surely, 2^7778325250 is an apocalyptic number.

7778325250 is a deficient number, since it is larger than the sum of its proper divisors (7208038142).

7778325250 is a wasteful number, since it uses less digits than its factorization.

7778325250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3628 (or 3618 counting only the distinct ones).

The product of its (nonzero) digits is 823200, while the sum is 46.

The square root of 7778325250 is about 88194.8141899511. The cubic root of 7778325250 is about 1981.3538040993.

The spelling of 7778325250 in words is "seven billion, seven hundred seventy-eight million, three hundred twenty-five thousand, two hundred fifty".