870641175787881 has 8 divisors (see below), whose sum is σ = 1160856983246880. Its totient is φ = 580426409427072.

The previous prime is 870641175787837. The next prime is 870641175787921. The reversal of 870641175787881 is 188787571146078.

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

It is not a de Polignac number, because 870641175787881 - 2¹⁰ = 870641175786857 is a prime.

It is a super-3 number, since 3×870641175787881³ (a number of 46 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 870641175787797 and 870641175787806.

It is not an unprimeable number, because it can be changed into a prime (870641175787381) 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, 258321151 + ... + 261669828.

It is an arithmetic number, because the mean of its divisors is an integer number (145107122905860).

Almost surely, 2^{870641175787881} is an apocalyptic number.

It is an amenable number.

870641175787881 is a deficient number, since it is larger than the sum of its proper divisors (290215807458999).

870641175787881 is a wasteful number, since it uses less digits than its factorization.

870641175787881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520549095.

The product of its (nonzero) digits is 1180139520, while the sum is 78.

The spelling of 870641175787881 in words is "eight hundred seventy trillion, six hundred forty-one billion, one hundred seventy-five million, seven hundred eighty-seven thousand, eight hundred eighty-one".