47197466887 has 16 divisors (see below), whose sum is σ = 48527930880. Its totient is φ = 45877964832.

The previous prime is 47197466803. The next prime is 47197466891. The reversal of 47197466887 is 78866479174.

It is a cyclic number.

It is not a de Polignac number, because 47197466887 - 2¹⁹ = 47196942599 is a prime.

It is a super-4 number, since 4×47197466887⁴ (a number of 44 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47197466087) 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, 17629393 + ... + 17632069.

It is an arithmetic number, because the mean of its divisors is an integer number (3032995680).

Almost surely, 2^47197466887 is an apocalyptic number.

47197466887 is a deficient number, since it is larger than the sum of its proper divisors (1330463993).

47197466887 is a wasteful number, since it uses less digits than its factorization.

47197466887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4542.

The product of its digits is 113799168, while the sum is 67.

The spelling of 47197466887 in words is "forty-seven billion, one hundred ninety-seven million, four hundred sixty-six thousand, eight hundred eighty-seven".