86278776475486 has 64 divisors (see below), whose sum is σ = 150147886464000. Its totient is φ = 36417384138240.

The previous prime is 86278776475453. The next prime is 86278776475487. The reversal of 86278776475486 is 68457467787268.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86278776475487) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4468309600 + ... + 4468328908.

It is an arithmetic number, because the mean of its divisors is an integer number (2346060726000).

Almost surely, 2^{86278776475486} is an apocalyptic number.

86278776475486 is a deficient number, since it is larger than the sum of its proper divisors (63869109988514).

86278776475486 is a wasteful number, since it uses less digits than its factorization.

86278776475486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23897.

The product of its digits is 42485022720, while the sum is 85.

The spelling of 86278776475486 in words is "eighty-six trillion, two hundred seventy-eight billion, seven hundred seventy-six million, four hundred seventy-five thousand, four hundred eighty-six".