229728100003547 has 2 divisors, whose sum is σ = 229728100003548. Its totient is φ = 229728100003546.

The previous prime is 229728100003517. The next prime is 229728100003601. The reversal of 229728100003547 is 745300001827922.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 229728100003547 - 2²² = 229728095809243 is a prime.

It is a super-2 number, since 2×229728100003547² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 229728100003495 and 229728100003504.

It is not a weakly prime, because it can be changed into another prime (229728100003517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114864050001773 + 114864050001774.

It is an arithmetic number, because the mean of its divisors is an integer number (114864050001774).

Almost surely, 2^{229728100003547} is an apocalyptic number.

229728100003547 is a deficient number, since it is larger than the sum of its proper divisors (1).

229728100003547 is an equidigital number, since it uses as much as digits as its factorization.

229728100003547 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1693440, while the sum is 50.

The spelling of 229728100003547 in words is "two hundred twenty-nine trillion, seven hundred twenty-eight billion, one hundred million, three thousand, five hundred forty-seven".