71770689828865 has 8 divisors (see below), whose sum is σ = 90657713468160. Its totient is φ = 54394628080752.

The previous prime is 71770689828857. The next prime is 71770689828889. The reversal of 71770689828865 is 56882898607717.

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

It is a cyclic number.

It is not a de Polignac number, because 71770689828865 - 2³ = 71770689828857 is a prime.

It is a super-2 number, since 2×71770689828865² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 377740472689 + ... + 377740472878.

It is an arithmetic number, because the mean of its divisors is an integer number (11332214183520).

Almost surely, 2^{71770689828865} is an apocalyptic number.

It is an amenable number.

71770689828865 is a deficient number, since it is larger than the sum of its proper divisors (18887023639295).

71770689828865 is a wasteful number, since it uses less digits than its factorization.

71770689828865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755480945591.

The product of its (nonzero) digits is 4551966720, while the sum is 82.

The spelling of 71770689828865 in words is "seventy-one trillion, seven hundred seventy billion, six hundred eighty-nine million, eight hundred twenty-eight thousand, eight hundred sixty-five".