7767878052 has 24 divisors (see below), whose sum is σ = 19772780832. Its totient is φ = 2353902400.

The previous prime is 7767878033. The next prime is 7767878099. The reversal of 7767878052 is 2508787677.

It is a junction number, because it is equal to n+sod(n) for n = 7767877983 and 7767878001.

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, 29423649 + ... + 29423912.

It is an arithmetic number, because the mean of its divisors is an integer number (823865868).

Almost surely, 2^7767878052 is an apocalyptic number.

It is an amenable number.

7767878052 is an abundant number, since it is smaller than the sum of its proper divisors (12004902780).

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

7767878052 is a wasteful number, since it uses less digits than its factorization.

7767878052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58847579 (or 58847577 counting only the distinct ones).

The product of its (nonzero) digits is 9219840, while the sum is 57.

The square root of 7767878052 is about 88135.5663282423. The cubic root of 7767878052 is about 1980.4663435780.

The spelling of 7767878052 in words is "seven billion, seven hundred sixty-seven million, eight hundred seventy-eight thousand, fifty-two".