86115260978 has 16 divisors (see below), whose sum is σ = 130699008000. Its totient is φ = 42549478752.

The previous prime is 86115260977. The next prime is 86115260981. The reversal of 86115260978 is 87906251168.

It is not an unprimeable number, because it can be changed into a prime (86115260977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175583 + ... + 450621.

It is an arithmetic number, because the mean of its divisors is an integer number (8168688000).

Almost surely, 2^86115260978 is an apocalyptic number.

86115260978 is a deficient number, since it is larger than the sum of its proper divisors (44583747022).

86115260978 is a wasteful number, since it uses less digits than its factorization.

86115260978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276889.

The product of its (nonzero) digits is 1451520, while the sum is 53.

The spelling of 86115260978 in words is "eighty-six billion, one hundred fifteen million, two hundred sixty thousand, nine hundred seventy-eight".