42998198473 has 2 divisors, whose sum is σ = 42998198474. Its totient is φ = 42998198472.

The previous prime is 42998198461. The next prime is 42998198479. The reversal of 42998198473 is 37489189924.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23633527824 + 19364670649 = 153732^2 + 139157^2 .

It is a cyclic number.

It is not a de Polignac number, because 42998198473 - 2²¹ = 42996101321 is a prime.

It is not a weakly prime, because it can be changed into another prime (42998198479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21499099236 + 21499099237.

It is an arithmetic number, because the mean of its divisors is an integer number (21499099237).

Almost surely, 2^42998198473 is an apocalyptic number.

It is an amenable number.

42998198473 is a deficient number, since it is larger than the sum of its proper divisors (1).

42998198473 is an equidigital number, since it uses as much as digits as its factorization.

42998198473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31352832, while the sum is 64.

The spelling of 42998198473 in words is "forty-two billion, nine hundred ninety-eight million, one hundred ninety-eight thousand, four hundred seventy-three".