17715268061 has 2 divisors, whose sum is σ = 17715268062. Its totient is φ = 17715268060.

The previous prime is 17715268037. The next prime is 17715268063. The reversal of 17715268061 is 16086251771.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13912202500 + 3803065561 = 117950^2 + 61669^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-17715268061 is a prime.

Together with 17715268063, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17715268063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8857634030 + 8857634031.

It is an arithmetic number, because the mean of its divisors is an integer number (8857634031).

Almost surely, 2^17715268061 is an apocalyptic number.

It is an amenable number.

17715268061 is a deficient number, since it is larger than the sum of its proper divisors (1).

17715268061 is an equidigital number, since it uses as much as digits as its factorization.

17715268061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141120, while the sum is 44.

The spelling of 17715268061 in words is "seventeen billion, seven hundred fifteen million, two hundred sixty-eight thousand, sixty-one".