86810780039686 has 8 divisors (see below), whose sum is σ = 130267095436800. Its totient is φ = 43388414894088.

The previous prime is 86810780039629. The next prime is 86810780039779. The reversal of 86810780039686 is 68693008701868.

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

It is a super-2 number, since 2×86810780039686² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8487556486 + ... + 8487566713.

It is an arithmetic number, because the mean of its divisors is an integer number (16283386929600).

Almost surely, 2^{86810780039686} is an apocalyptic number.

86810780039686 is a deficient number, since it is larger than the sum of its proper divisors (43456315397114).

86810780039686 is a wasteful number, since it uses less digits than its factorization.

86810780039686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16975125758.

The product of its (nonzero) digits is 167215104, while the sum is 70.

The spelling of 86810780039686 in words is "eighty-six trillion, eight hundred ten billion, seven hundred eighty million, thirty-nine thousand, six hundred eighty-six".