47808635436 has 36 divisors (see below), whose sum is σ = 120868157592. Its totient is φ = 15933765504.

The previous prime is 47808635387. The next prime is 47808635453. The reversal of 47808635436 is 63453680874.

It is a tau number, because it is divible by the number of its divisors (36).

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 11 ways as a sum of consecutive naturals, for example, 143971 + ... + 341093.

It is an arithmetic number, because the mean of its divisors is an integer number (3357448822).

Almost surely, 2^47808635436 is an apocalyptic number.

It is an amenable number.

47808635436 is an abundant number, since it is smaller than the sum of its proper divisors (73059522156).

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

47808635436 is a wasteful number, since it uses less digits than its factorization.

47808635436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203870 (or 203865 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 54.

The spelling of 47808635436 in words is "forty-seven billion, eight hundred eight million, six hundred thirty-five thousand, four hundred thirty-six".