86621863848 has 64 divisors (see below), whose sum is σ = 234213819840. Its totient is φ = 26538468864.

The previous prime is 86621863843. The next prime is 86621863849. The reversal of 86621863848 is 84836812668.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 86621863791 and 86621863800.

It is not an unprimeable number, because it can be changed into a prime (86621863843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 523086 + ... + 668477.

It is an arithmetic number, because the mean of its divisors is an integer number (3659590935).

Almost surely, 2^86621863848 is an apocalyptic number.

It is an amenable number.

86621863848 is an abundant number, since it is smaller than the sum of its proper divisors (147591955992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86621863848 is a wasteful number, since it uses less digits than its factorization.

86621863848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191818 (or 1191814 counting only the distinct ones).

The product of its digits is 21233664, while the sum is 60.

The spelling of 86621863848 in words is "eighty-six billion, six hundred twenty-one million, eight hundred sixty-three thousand, eight hundred forty-eight".