95721865849 has 2 divisors, whose sum is σ = 95721865850. Its totient is φ = 95721865848.

The previous prime is 95721865843. The next prime is 95721865867. The reversal of 95721865849 is 94856812759.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82307593449 + 13414272400 = 286893^2 + 115820^2 .

It is a cyclic number.

It is not a de Polignac number, because 95721865849 - 2⁵ = 95721865817 is a prime.

It is a super-3 number, since 3×95721865849³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (95721865843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47860932924 + 47860932925.

It is an arithmetic number, because the mean of its divisors is an integer number (47860932925).

Almost surely, 2^95721865849 is an apocalyptic number.

It is an amenable number.

95721865849 is a deficient number, since it is larger than the sum of its proper divisors (1).

95721865849 is an equidigital number, since it uses as much as digits as its factorization.

95721865849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43545600, while the sum is 64.

The spelling of 95721865849 in words is "ninety-five billion, seven hundred twenty-one million, eight hundred sixty-five thousand, eight hundred forty-nine".