534560235721 has 2 divisors, whose sum is σ = 534560235722. Its totient is φ = 534560235720.

The previous prime is 534560235637. The next prime is 534560235749. The reversal of 534560235721 is 127532065435.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 314025744400 + 220534491321 = 560380^2 + 469611^2 .

It is a cyclic number.

It is not a de Polignac number, because 534560235721 - 2²³ = 534551847113 is a prime.

It is a super-2 number, since 2×534560235721² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (534500235721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 267280117860 + 267280117861.

It is an arithmetic number, because the mean of its divisors is an integer number (267280117861).

Almost surely, 2^534560235721 is an apocalyptic number.

It is an amenable number.

534560235721 is a deficient number, since it is larger than the sum of its proper divisors (1).

534560235721 is an equidigital number, since it uses as much as digits as its factorization.

534560235721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756000, while the sum is 43.

The spelling of 534560235721 in words is "five hundred thirty-four billion, five hundred sixty million, two hundred thirty-five thousand, seven hundred twenty-one".