47666666671 has 8 divisors (see below), whose sum is σ = 51367060080. Its totient is φ = 43971091392.

The previous prime is 47666666653. The next prime is 47666666711. The reversal of 47666666671 is 17666666674.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47666666671 - 2¹¹ = 47666664623 is a prime.

It is a super-2 number, since 2×47666666671² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47666666071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1183966 + ... + 1223563.

It is an arithmetic number, because the mean of its divisors is an integer number (6420882510).

Almost surely, 2^47666666671 is an apocalyptic number.

47666666671 is a deficient number, since it is larger than the sum of its proper divisors (3700393409).

47666666671 is a wasteful number, since it uses less digits than its factorization.

47666666671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2409065.

The product of its digits is 54867456, while the sum is 61.

The spelling of 47666666671 in words is "forty-seven billion, six hundred sixty-six million, six hundred sixty-six thousand, six hundred seventy-one".