229863897577 has 2 divisors, whose sum is σ = 229863897578. Its totient is φ = 229863897576.

The previous prime is 229863897551. The next prime is 229863897583. The reversal of 229863897577 is 775798368922.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 154996540416 + 74867357161 = 393696^2 + 273619^2 .

It is a cyclic number.

It is not a de Polignac number, because 229863897577 - 2²³ = 229855508969 is a prime.

It is a super-2 number, since 2×229863897577² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (229863894577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114931948788 + 114931948789.

It is an arithmetic number, because the mean of its divisors is an integer number (114931948789).

Almost surely, 2^229863897577 is an apocalyptic number.

It is an amenable number.

229863897577 is a deficient number, since it is larger than the sum of its proper divisors (1).

229863897577 is an equidigital number, since it uses as much as digits as its factorization.

229863897577 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 640120320, while the sum is 73.

The spelling of 229863897577 in words is "two hundred twenty-nine billion, eight hundred sixty-three million, eight hundred ninety-seven thousand, five hundred seventy-seven".