86921503852 has 12 divisors (see below), whose sum is σ = 154690812360. Its totient is φ = 42724128896.

The previous prime is 86921503847. The next prime is 86921503859. The reversal of 86921503852 is 25830512968.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 86921503796 and 86921503805.

It is not an unprimeable number, because it can be changed into a prime (86921503859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184155493 + ... + 184155964.

It is an arithmetic number, because the mean of its divisors is an integer number (12890901030).

Almost surely, 2^86921503852 is an apocalyptic number.

It is an amenable number.

86921503852 is a deficient number, since it is larger than the sum of its proper divisors (67769308508).

86921503852 is a wasteful number, since it uses less digits than its factorization.

86921503852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368311520 (or 368311518 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 49.

The spelling of 86921503852 in words is "eighty-six billion, nine hundred twenty-one million, five hundred three thousand, eight hundred fifty-two".