86181698446 has 16 divisors (see below), whose sum is σ = 133069520304. Its totient is φ = 41841955584.

The previous prime is 86181698437. The next prime is 86181698507. The reversal of 86181698446 is 64489618168.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4180620 + ... + 4201183.

It is an arithmetic number, because the mean of its divisors is an integer number (8316845019).

Almost surely, 2^86181698446 is an apocalyptic number.

86181698446 is a deficient number, since it is larger than the sum of its proper divisors (46887821858).

86181698446 is a wasteful number, since it uses less digits than its factorization.

86181698446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8381955.

The product of its digits is 15925248, while the sum is 61.

The spelling of 86181698446 in words is "eighty-six billion, one hundred eighty-one million, six hundred ninety-eight thousand, four hundred forty-six".