86215177371 has 16 divisors (see below), whose sum is σ = 117659649536. Its totient is φ = 56139034176.

The previous prime is 86215177369. The next prime is 86215177397. The reversal of 86215177371 is 17377151268.

It is not a de Polignac number, because 86215177371 - 2¹ = 86215177369 is a prime.

It is a super-2 number, since 2×86215177371² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86215177371.

It is not an unprimeable number, because it can be changed into a prime (86215177351) 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 15 ways as a sum of consecutive naturals, for example, 1888495 + ... + 1933608.

It is an arithmetic number, because the mean of its divisors is an integer number (7353728096).

Almost surely, 2^86215177371 is an apocalyptic number.

86215177371 is a deficient number, since it is larger than the sum of its proper divisors (31444472165).

86215177371 is a wasteful number, since it uses less digits than its factorization.

86215177371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3822282.

The product of its digits is 493920, while the sum is 48.

The spelling of 86215177371 in words is "eighty-six billion, two hundred fifteen million, one hundred seventy-seven thousand, three hundred seventy-one".