7922780148 has 24 divisors (see below), whose sum is σ = 18497936800. Its totient is φ = 2639291040.

The previous prime is 7922780059. The next prime is 7922780149. The reversal of 7922780148 is 8410872297.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 7922780097 and 7922780106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7922780149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184198 + ... + 223101.

Almost surely, 2^7922780148 is an apocalyptic number.

It is an amenable number.

7922780148 is an abundant number, since it is smaller than the sum of its proper divisors (10575156652).

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

7922780148 is a wasteful number, since it uses less digits than its factorization.

7922780148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408927 (or 408925 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 48.

The square root of 7922780148 is about 89010.0002696326. Note that the first 3 decimals coincide. The cubic root of 7922780148 is about 1993.5441960528.

Subtracting from 7922780148 its sum of digits (48), we obtain a square (7922780100 = 89010²).

The spelling of 7922780148 in words is "seven billion, nine hundred twenty-two million, seven hundred eighty thousand, one hundred forty-eight".