87065870751765 has 32 divisors (see below), whose sum is σ = 155153182665600. Its totient is φ = 46324307335680.

The previous prime is 87065870751737. The next prime is 87065870751779. The reversal of 87065870751765 is 56715707856078.

It is not a de Polignac number, because 87065870751765 - 2¹⁶ = 87065870686229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87065870751693 and 87065870751702.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 769552476 + ... + 769665605.

It is an arithmetic number, because the mean of its divisors is an integer number (4848536958300).

Almost surely, 2^{87065870751765} is an apocalyptic number.

It is an amenable number.

87065870751765 is a deficient number, since it is larger than the sum of its proper divisors (68087311913835).

87065870751765 is a wasteful number, since it uses less digits than its factorization.

87065870751765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1539218514 (or 1539218508 counting only the distinct ones).

The product of its (nonzero) digits is 691488000, while the sum is 72.

The spelling of 87065870751765 in words is "eighty-seven trillion, sixty-five billion, eight hundred seventy million, seven hundred fifty-one thousand, seven hundred sixty-five".