47909173782 has 16 divisors (see below), whose sum is σ = 95853465792. Its totient is φ = 15963871560.

The previous prime is 47909173703. The next prime is 47909173799. The reversal of 47909173782 is 28737190974.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1445508 + ... + 1478279.

It is an arithmetic number, because the mean of its divisors is an integer number (5990841612).

Almost surely, 2^47909173782 is an apocalyptic number.

47909173782 is an abundant number, since it is smaller than the sum of its proper divisors (47944292010).

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

47909173782 is a wasteful number, since it uses less digits than its factorization.

47909173782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2926523.

The product of its (nonzero) digits is 5334336, while the sum is 57.

The spelling of 47909173782 in words is "forty-seven billion, nine hundred nine million, one hundred seventy-three thousand, seven hundred eighty-two".