534261737021 has 2 divisors, whose sum is σ = 534261737022. Its totient is φ = 534261737020.

The previous prime is 534261736973. The next prime is 534261737027. The reversal of 534261737021 is 120737162435.

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., 521448628996 + 12813108025 = 722114^2 + 113195^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-534261737021 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 534261737021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (534261737027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 267130868510 + 267130868511.

It is an arithmetic number, because the mean of its divisors is an integer number (267130868511).

Almost surely, 2^534261737021 is an apocalyptic number.

It is an amenable number.

534261737021 is a deficient number, since it is larger than the sum of its proper divisors (1).

534261737021 is an equidigital number, since it uses as much as digits as its factorization.

534261737021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 211680, while the sum is 41.

Adding to 534261737021 its reverse (120737162435), we get a palindrome (654998899456).

The spelling of 534261737021 in words is "five hundred thirty-four billion, two hundred sixty-one million, seven hundred thirty-seven thousand, twenty-one".