18770098417 has 20 divisors (see below), whose sum is σ = 22652303220. Its totient is φ = 15533816928.

The previous prime is 18770098411. The next prime is 18770098427. The reversal of 18770098417 is 71489007781.

It can be written as a sum of positive squares in 2 ways, for example, as 9835878976 + 8934219441 = 99176^2 + 94521^2 .

It is not a de Polignac number, because 18770098417 - 2³¹ = 16622614769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18770098411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 65158 + ... + 204415.

It is an arithmetic number, because the mean of its divisors is an integer number (1132615161).

Almost surely, 2^18770098417 is an apocalyptic number.

It is an amenable number.

18770098417 is a deficient number, since it is larger than the sum of its proper divisors (3882204803).

18770098417 is an frugal number, since it uses more digits than its factorization.

18770098417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269630 (or 269609 counting only the distinct ones).

The product of its (nonzero) digits is 790272, while the sum is 52.

The spelling of 18770098417 in words is "eighteen billion, seven hundred seventy million, ninety-eight thousand, four hundred seventeen".