86181625226 has 4 divisors (see below), whose sum is σ = 129272437842. Its totient is φ = 43090812612.

The previous prime is 86181625207. The next prime is 86181625261. The reversal of 86181625226 is 62252618168.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 47609058025 + 38572567201 = 218195^2 + 196399^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21545406305 + ... + 21545406308.

Almost surely, 2^86181625226 is an apocalyptic number.

86181625226 is a deficient number, since it is larger than the sum of its proper divisors (43090812616).

86181625226 is a wasteful number, since it uses less digits than its factorization.

86181625226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43090812615.

The product of its digits is 552960, while the sum is 47.

The spelling of 86181625226 in words is "eighty-six billion, one hundred eighty-one million, six hundred twenty-five thousand, two hundred twenty-six".