47878088636 has 24 divisors (see below), whose sum is σ = 96685854720. Its totient is φ = 20319964272.

The previous prime is 47878088623. The next prime is 47878088677. The reversal of 47878088636 is 63688087874.

It is a super-2 number, since 2×47878088636² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8297756 + ... + 8303523.

It is an arithmetic number, because the mean of its divisors is an integer number (4028577280).

Almost surely, 2^47878088636 is an apocalyptic number.

It is an amenable number.

47878088636 is an abundant number, since it is smaller than the sum of its proper divisors (48807766084).

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

47878088636 is a wasteful number, since it uses less digits than its factorization.

47878088636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16601393 (or 16601391 counting only the distinct ones).

The product of its (nonzero) digits is 86704128, while the sum is 65.

The spelling of 47878088636 in words is "forty-seven billion, eight hundred seventy-eight million, eighty-eight thousand, six hundred thirty-six".