8778780012 has 48 divisors (see below), whose sum is σ = 21198205952. Its totient is φ = 2824683840.

The previous prime is 8778779959. The next prime is 8778780013. The reversal of 8778780012 is 2100878778.

It is not an unprimeable number, because it can be changed into a prime (8778780013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117963 + ... + 177405.

Almost surely, 2^8778780012 is an apocalyptic number.

It is an amenable number.

8778780012 is an abundant number, since it is smaller than the sum of its proper divisors (12419425940).

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

8778780012 is a wasteful number, since it uses less digits than its factorization.

8778780012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59878 (or 59876 counting only the distinct ones).

The product of its (nonzero) digits is 351232, while the sum is 48.

The square root of 8778780012 is about 93695.1440150449. The cubic root of 8778780012 is about 2062.8994277136.

The spelling of 8778780012 in words is "eight billion, seven hundred seventy-eight million, seven hundred eighty thousand, twelve".