91798304337 has 6 divisors (see below), whose sum is σ = 132597550722. Its totient is φ = 61198869552.

The previous prime is 91798304333. The next prime is 91798304399. The reversal of 91798304337 is 73340389719.

It is a happy number.

91798304337 is a `hidden beast` number, since 9 + 179 + 8 + 30 + 433 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 87235166736 + 4563137601 = 295356^2 + 67551^2 .

It is not a de Polignac number, because 91798304337 - 2² = 91798304333 is a prime.

It is not an unprimeable number, because it can be changed into a prime (91798304333) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5099905788 + ... + 5099905805.

It is an arithmetic number, because the mean of its divisors is an integer number (22099591787).

Almost surely, 2^91798304337 is an apocalyptic number.

It is an amenable number.

91798304337 is a deficient number, since it is larger than the sum of its proper divisors (40799246385).

91798304337 is a wasteful number, since it uses less digits than its factorization.

91798304337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10199811599 (or 10199811596 counting only the distinct ones).

The product of its (nonzero) digits is 3429216, while the sum is 54.

The spelling of 91798304337 in words is "ninety-one billion, seven hundred ninety-eight million, three hundred four thousand, three hundred thirty-seven".