86611827078479 has 16 divisors (see below), whose sum is σ = 88899196886016. Its totient is φ = 84343210005600.

The previous prime is 86611827078437. The next prime is 86611827078481. The reversal of 86611827078479 is 97487072811668.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86611827078479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86611827078779) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33574829 + ... + 36062345.

It is an arithmetic number, because the mean of its divisors is an integer number (5556199805376).

Almost surely, 2^{86611827078479} is an apocalyptic number.

86611827078479 is a deficient number, since it is larger than the sum of its proper divisors (2287369807537).

86611827078479 is a wasteful number, since it uses less digits than its factorization.

86611827078479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2491286.

The product of its (nonzero) digits is 455196672, while the sum is 74.

The spelling of 86611827078479 in words is "eighty-six trillion, six hundred eleven billion, eight hundred twenty-seven million, seventy-eight thousand, four hundred seventy-nine".