47351691669 has 16 divisors (see below), whose sum is σ = 67487462784. Its totient is φ = 29458809600.

The previous prime is 47351691641. The next prime is 47351691721. The reversal of 47351691669 is 96619615374.

It is not a de Polignac number, because 47351691669 - 2⁹ = 47351691157 is a prime.

It is a super-2 number, since 2×47351691669² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47352691669) 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 15 ways as a sum of consecutive naturals, for example, 8366152 + ... + 8371809.

It is an arithmetic number, because the mean of its divisors is an integer number (4217966424).

Almost surely, 2^47351691669 is an apocalyptic number.

It is an amenable number.

47351691669 is a deficient number, since it is larger than the sum of its proper divisors (20135771115).

47351691669 is a wasteful number, since it uses less digits than its factorization.

47351691669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16738028.

The product of its digits is 7348320, while the sum is 57.

The spelling of 47351691669 in words is "forty-seven billion, three hundred fifty-one million, six hundred ninety-one thousand, six hundred sixty-nine".