86803181658 has 40 divisors (see below), whose sum is σ = 197692028820. Its totient is φ = 28460056320.

The previous prime is 86803181651. The next prime is 86803181683. The reversal of 86803181658 is 85618130868.

It can be written as a sum of positive squares in 2 ways, for example, as 86596598529 + 206583129 = 294273^2 + 14373^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (86803181651) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4382103 + ... + 4401866.

Almost surely, 2^86803181658 is an apocalyptic number.

86803181658 is an abundant number, since it is smaller than the sum of its proper divisors (110888847162).

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

86803181658 is a wasteful number, since it uses less digits than its factorization.

86803181658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8784044 (or 8784035 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 54.

The spelling of 86803181658 in words is "eighty-six billion, eight hundred three million, one hundred eighty-one thousand, six hundred fifty-eight".