47785206540 has 48 divisors (see below), whose sum is σ = 135410623488. Its totient is φ = 12589193664.

The previous prime is 47785206527. The next prime is 47785206593. The reversal of 47785206540 is 4560258774.

It is a self number, because there is not a number n which added to its sum of digits gives 47785206540.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4792732 + ... + 4802691.

It is an arithmetic number, because the mean of its divisors is an integer number (2821054656).

Almost surely, 2^47785206540 is an apocalyptic number.

It is an amenable number.

47785206540 is an abundant number, since it is smaller than the sum of its proper divisors (87625416948).

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

47785206540 is a wasteful number, since it uses less digits than its factorization.

47785206540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9595518 (or 9595516 counting only the distinct ones).

The product of its (nonzero) digits is 1881600, while the sum is 48.

The spelling of 47785206540 in words is "forty-seven billion, seven hundred eighty-five million, two hundred six thousand, five hundred forty".