229858397497 has 4 divisors (see below), whose sum is σ = 232228071796. Its totient is φ = 227488723200.

The previous prime is 229858397471. The next prime is 229858397507. The reversal of 229858397497 is 794793858922.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 34621672761 + 195236724736 = 186069^2 + 441856^2 .

It is a cyclic number.

It is not a de Polignac number, because 229858397497 - 2⁷ = 229858397369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (229858397597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1184837004 + ... + 1184837197.

It is an arithmetic number, because the mean of its divisors is an integer number (58057017949).

Almost surely, 2^229858397497 is an apocalyptic number.

It is an amenable number.

229858397497 is a deficient number, since it is larger than the sum of its proper divisors (2369674299).

229858397497 is an equidigital number, since it uses as much as digits as its factorization.

229858397497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2369674298.

The product of its digits is 548674560, while the sum is 73.

The spelling of 229858397497 in words is "two hundred twenty-nine billion, eight hundred fifty-eight million, three hundred ninety-seven thousand, four hundred ninety-seven".