86782815212 has 48 divisors (see below), whose sum is σ = 160522113024. Its totient is φ = 40997880000.

The previous prime is 86782815187. The next prime is 86782815289. The reversal of 86782815212 is 21251828768.

It is a super-2 number, since 2×86782815212² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 858962 + ... + 954662.

It is an arithmetic number, because the mean of its divisors is an integer number (3344210688).

Almost surely, 2^86782815212 is an apocalyptic number.

It is an amenable number.

86782815212 is a deficient number, since it is larger than the sum of its proper divisors (73739297812).

86782815212 is a wasteful number, since it uses less digits than its factorization.

86782815212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95910 (or 95908 counting only the distinct ones).

The product of its digits is 860160, while the sum is 50.

The spelling of 86782815212 in words is "eighty-six billion, seven hundred eighty-two million, eight hundred fifteen thousand, two hundred twelve".