91804595914 has 4 divisors (see below), whose sum is σ = 137706893874. Its totient is φ = 45902297956.

The previous prime is 91804595863. The next prime is 91804595921. The reversal of 91804595914 is 41959540819.

It is a happy number.

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., 76941328689 + 14863267225 = 277383^2 + 121915^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22951148977 + ... + 22951148980.

Almost surely, 2^91804595914 is an apocalyptic number.

91804595914 is a deficient number, since it is larger than the sum of its proper divisors (45902297960).

91804595914 is a wasteful number, since it uses less digits than its factorization.

91804595914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45902297959.

The product of its (nonzero) digits is 2332800, while the sum is 55.

The spelling of 91804595914 in words is "ninety-one billion, eight hundred four million, five hundred ninety-five thousand, nine hundred fourteen".