86909361979 has 32 divisors (see below), whose sum is σ = 102006685440. Its totient is φ = 73287849600.

The previous prime is 86909361971. The next prime is 86909361997. The reversal of 86909361979 is 97916390968.

It is a cyclic number.

It is not a de Polignac number, because 86909361979 - 2³ = 86909361971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86909361971) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 784804 + ... + 888670.

It is an arithmetic number, because the mean of its divisors is an integer number (3187708920).

Almost surely, 2^86909361979 is an apocalyptic number.

86909361979 is a deficient number, since it is larger than the sum of its proper divisors (15097323461).

86909361979 is a wasteful number, since it uses less digits than its factorization.

86909361979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104011.

The product of its (nonzero) digits is 39680928, while the sum is 67.

The spelling of 86909361979 in words is "eighty-six billion, nine hundred nine million, three hundred sixty-one thousand, nine hundred seventy-nine".