2646129836 has 48 divisors (see below), whose sum is σ = 5346410496. Its totient is φ = 1122496704.

The previous prime is 2646129823. The next prime is 2646129841. The reversal of 2646129836 is 6389216462.

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, 2691401 + ... + 2692383.

It is an arithmetic number, because the mean of its divisors is an integer number (111383552).

Almost surely, 2^2646129836 is an apocalyptic number.

It is an amenable number.

2646129836 is an abundant number, since it is smaller than the sum of its proper divisors (2700280660).

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

2646129836 is a wasteful number, since it uses less digits than its factorization.

2646129836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1878 (or 1876 counting only the distinct ones).

The product of its digits is 746496, while the sum is 47.

The square root of 2646129836 is about 51440.5466145141. The cubic root of 2646129836 is about 1383.1535100973.

The spelling of 2646129836 in words is "two billion, six hundred forty-six million, one hundred twenty-nine thousand, eight hundred thirty-six".