86781380847074 has 8 divisors (see below), whose sum is σ = 130182036254400. Its totient is φ = 43387368762276.

The previous prime is 86781380847071. The next prime is 86781380847113. The reversal of 86781380847074 is 47074808318768.

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

It is a super-2 number, since 2×86781380847074² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 86781380846989 and 86781380847007.

It is not an unprimeable number, because it can be changed into a prime (86781380847071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1660797974 + ... + 1660850225.

It is an arithmetic number, because the mean of its divisors is an integer number (16272754531800).

Almost surely, 2^{86781380847074} is an apocalyptic number.

86781380847074 is a deficient number, since it is larger than the sum of its proper divisors (43400655407326).

86781380847074 is a wasteful number, since it uses less digits than its factorization.

86781380847074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3321661264.

The product of its (nonzero) digits is 404619264, while the sum is 71.

The spelling of 86781380847074 in words is "eighty-six trillion, seven hundred eighty-one billion, three hundred eighty million, eight hundred forty-seven thousand, seventy-four".