86561181062463 has 4 divisors (see below), whose sum is σ = 115414908083288. Its totient is φ = 57707454041640.

The previous prime is 86561181062449. The next prime is 86561181062509. The reversal of 86561181062463 is 36426018116568.

It is a happy number.

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

It is not a de Polignac number, because 86561181062463 - 2³⁶ = 86492461585727 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 (86561181062423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14426863510408 + ... + 14426863510413.

It is an arithmetic number, because the mean of its divisors is an integer number (28853727020822).

Almost surely, 2^{86561181062463} is an apocalyptic number.

86561181062463 is a deficient number, since it is larger than the sum of its proper divisors (28853727020825).

86561181062463 is a wasteful number, since it uses less digits than its factorization.

86561181062463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28853727020824.

The product of its (nonzero) digits is 9953280, while the sum is 57.

The spelling of 86561181062463 in words is "eighty-six trillion, five hundred sixty-one billion, one hundred eighty-one million, sixty-two thousand, four hundred sixty-three".