7881766152 has 64 divisors (see below), whose sum is σ = 21228600960. Its totient is φ = 2424192000.

The previous prime is 7881766147. The next prime is 7881766169. The reversal of 7881766152 is 2516671887.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 7881766095 and 7881766104.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1470277 + ... + 1475627.

It is an arithmetic number, because the mean of its divisors is an integer number (331696890).

Almost surely, 2^7881766152 is an apocalyptic number.

It is an amenable number.

7881766152 is an abundant number, since it is smaller than the sum of its proper divisors (13346834808).

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

7881766152 is a wasteful number, since it uses less digits than its factorization.

7881766152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10094 (or 10090 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 51.

The square root of 7881766152 is about 88779.3115089321. The cubic root of 7881766152 is about 1990.0982377873.

The spelling of 7881766152 in words is "seven billion, eight hundred eighty-one million, seven hundred sixty-six thousand, one hundred fifty-two".