47689556091 has 4 divisors (see below), whose sum is σ = 63586074792. Its totient is φ = 31793037392.

The previous prime is 47689556081. The next prime is 47689556107. The reversal of 47689556091 is 19065598674.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 47689556091 - 2¹¹ = 47689554043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47689556041) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 7948259346 + ... + 7948259351.

It is an arithmetic number, because the mean of its divisors is an integer number (15896518698).

Almost surely, 2^47689556091 is an apocalyptic number.

47689556091 is a deficient number, since it is larger than the sum of its proper divisors (15896518701).

47689556091 is a wasteful number, since it uses less digits than its factorization.

47689556091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15896518700.

The product of its (nonzero) digits is 16329600, while the sum is 60.

The spelling of 47689556091 in words is "forty-seven billion, six hundred eighty-nine million, five hundred fifty-six thousand, ninety-one".