228802996857551 has 2 divisors, whose sum is σ = 228802996857552. Its totient is φ = 228802996857550.

The previous prime is 228802996857527. The next prime is 228802996857577. The reversal of 228802996857551 is 155758699208822.

228802996857551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 228802996857551 - 2²² = 228802992663247 is a prime.

It is a super-2 number, since 2×228802996857551² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228802996857511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114401498428775 + 114401498428776.

It is an arithmetic number, because the mean of its divisors is an integer number (114401498428776).

Almost surely, 2^{228802996857551} is an apocalyptic number.

228802996857551 is a deficient number, since it is larger than the sum of its proper divisors (1).

228802996857551 is an equidigital number, since it uses as much as digits as its factorization.

228802996857551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1741824000, while the sum is 77.

The spelling of 228802996857551 in words is "two hundred twenty-eight trillion, eight hundred two billion, nine hundred ninety-six million, eight hundred fifty-seven thousand, five hundred fifty-one".