87666470889733 has 8 divisors (see below), whose sum is σ = 89103688281440. Its totient is φ = 86233040633520.

The previous prime is 87666470889713. The next prime is 87666470889743. The reversal of 87666470889733 is 33798807466678.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87666470889733 is a prime.

It is a super-2 number, since 2×87666470889733² (a number of 29 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 (87666470889713) 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, 946737198 + ... + 946829791.

It is an arithmetic number, because the mean of its divisors is an integer number (11137961035180).

Almost surely, 2^{87666470889733} is an apocalyptic number.

It is an amenable number.

87666470889733 is a deficient number, since it is larger than the sum of its proper divisors (1437217391707).

87666470889733 is a wasteful number, since it uses less digits than its factorization.

87666470889733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1893567747.

The product of its (nonzero) digits is 12290310144, while the sum is 82.

The spelling of 87666470889733 in words is "eighty-seven trillion, six hundred sixty-six billion, four hundred seventy million, eight hundred eighty-nine thousand, seven hundred thirty-three".