86821877086 has 16 divisors (see below), whose sum is σ = 150876375264. Its totient is φ = 36699657984.

The previous prime is 86821877059. The next prime is 86821877161. The reversal of 86821877086 is 68077812868.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42475435 + ... + 42477478.

It is an arithmetic number, because the mean of its divisors is an integer number (9429773454).

Almost surely, 2^86821877086 is an apocalyptic number.

86821877086 is a deficient number, since it is larger than the sum of its proper divisors (64054498178).

86821877086 is a wasteful number, since it uses less digits than its factorization.

86821877086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84952995.

The product of its (nonzero) digits is 14450688, while the sum is 61.

The spelling of 86821877086 in words is "eighty-six billion, eight hundred twenty-one million, eight hundred seventy-seven thousand, eighty-six".