959987475749 has 2 divisors, whose sum is σ = 959987475750. Its totient is φ = 959987475748.

The previous prime is 959987475743. The next prime is 959987475767. The reversal of 959987475749 is 947574789959.

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., 542307052225 + 417680423524 = 736415^2 + 646282^2 .

It is a cyclic number.

It is not a de Polignac number, because 959987475749 - 2³² = 955692508453 is a prime.

It is a super-2 number, since 2×959987475749² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (959987475743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 479993737874 + 479993737875.

It is an arithmetic number, because the mean of its divisors is an integer number (479993737875).

Almost surely, 2^959987475749 is an apocalyptic number.

It is an amenable number.

959987475749 is a deficient number, since it is larger than the sum of its proper divisors (1).

959987475749 is an equidigital number, since it uses as much as digits as its factorization.

959987475749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7201353600, while the sum is 83.

The spelling of 959987475749 in words is "nine hundred fifty-nine billion, nine hundred eighty-seven million, four hundred seventy-five thousand, seven hundred forty-nine".