86042771834 has 4 divisors (see below), whose sum is σ = 129064157754. Its totient is φ = 43021385916.

The previous prime is 86042771827. The next prime is 86042771849. The reversal of 86042771834 is 43817724068.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 69723986809 + 16318785025 = 264053^2 + 127745^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21510692957 + ... + 21510692960.

Almost surely, 2^86042771834 is an apocalyptic number.

86042771834 is a deficient number, since it is larger than the sum of its proper divisors (43021385920).

86042771834 is a wasteful number, since it uses less digits than its factorization.

86042771834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43021385919.

The product of its (nonzero) digits is 1806336, while the sum is 50.

The spelling of 86042771834 in words is "eighty-six billion, forty-two million, seven hundred seventy-one thousand, eight hundred thirty-four".