46636864778 has 16 divisors (see below), whose sum is σ = 79959868224. Its totient is φ = 19984488480.

The previous prime is 46636864763. The next prime is 46636864811. The reversal of 46636864778 is 87746863664.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120728 + ... + 328403.

It is an arithmetic number, because the mean of its divisors is an integer number (4997491764).

Almost surely, 2^46636864778 is an apocalyptic number.

46636864778 is a deficient number, since it is larger than the sum of its proper divisors (33323003446).

46636864778 is a wasteful number, since it uses less digits than its factorization.

46636864778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456557.

The product of its digits is 195084288, while the sum is 65.

The spelling of 46636864778 in words is "forty-six billion, six hundred thirty-six million, eight hundred sixty-four thousand, seven hundred seventy-eight".