4667782878 has 72 divisors (see below), whose sum is σ = 11417167944. Its totient is φ = 1376226720.

The previous prime is 4667782859. The next prime is 4667782901. The reversal of 4667782878 is 8782877664.

It is a super-2 number, since 2×4667782878² = 43576393992299925768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 51625 + ... + 109547.

It is an arithmetic number, because the mean of its divisors is an integer number (158571777).

Almost surely, 2^4667782878 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4667782878, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5708583972).

4667782878 is an abundant number, since it is smaller than the sum of its proper divisors (6749385066).

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

4667782878 is a wasteful number, since it uses less digits than its factorization.

4667782878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57990 (or 57976 counting only the distinct ones).

The product of its digits is 50577408, while the sum is 63.

The square root of 4667782878 is about 68321.1744483363. The cubic root of 4667782878 is about 1671.2325367471.

The spelling of 4667782878 in words is "four billion, six hundred sixty-seven million, seven hundred eighty-two thousand, eight hundred seventy-eight".