86515778463 has 16 divisors (see below), whose sum is σ = 122458853376. Its totient is φ = 54142663040.

The previous prime is 86515778443. The next prime is 86515778467. The reversal of 86515778463 is 36487751568.

It is a cyclic number.

It is not a de Polignac number, because 86515778463 - 2⁵ = 86515778431 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 86515778397 and 86515778406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86515778467) 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, 2195073 + ... + 2234138.

It is an arithmetic number, because the mean of its divisors is an integer number (7653678336).

Almost surely, 2^86515778463 is an apocalyptic number.

86515778463 is a deficient number, since it is larger than the sum of its proper divisors (35943074913).

86515778463 is a wasteful number, since it uses less digits than its factorization.

86515778463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4429614.

The product of its digits is 33868800, while the sum is 60.

The spelling of 86515778463 in words is "eighty-six billion, five hundred fifteen million, seven hundred seventy-eight thousand, four hundred sixty-three".