87050946681 has 12 divisors (see below), whose sum is σ = 125765414320. Its totient is φ = 58022353080.

The previous prime is 87050946637. The next prime is 87050946737. The reversal of 87050946681 is 18664905078.

87050946681 is a `hidden beast` number, since 8 + 70 + 509 + 4 + 6 + 68 + 1 = 666.

It is not a de Polignac number, because 87050946681 - 2¹⁴ = 87050930297 is a prime.

It is a super-2 number, since 2×87050946681² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87050946481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 920011 + ... + 1010208.

Almost surely, 2^87050946681 is an apocalyptic number.

It is an amenable number.

87050946681 is a deficient number, since it is larger than the sum of its proper divisors (38714467639).

87050946681 is a wasteful number, since it uses less digits than its factorization.

87050946681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1935236 (or 1935233 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 87050946681 in words is "eighty-seven billion, fifty million, nine hundred forty-six thousand, six hundred eighty-one".