961602969577 has 2 divisors, whose sum is σ = 961602969578. Its totient is φ = 961602969576.

The previous prime is 961602969557. The next prime is 961602969611. The reversal of 961602969577 is 775969206169.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 746117615961 + 215485353616 = 863781^2 + 464204^2 .

It is a cyclic number.

It is not a de Polignac number, because 961602969577 - 2¹⁵ = 961602936809 is a prime.

It is not a weakly prime, because it can be changed into another prime (961602969557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 480801484788 + 480801484789.

It is an arithmetic number, because the mean of its divisors is an integer number (480801484789).

Almost surely, 2^961602969577 is an apocalyptic number.

It is an amenable number.

961602969577 is a deficient number, since it is larger than the sum of its proper divisors (1).

961602969577 is an equidigital number, since it uses as much as digits as its factorization.

961602969577 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77157360, while the sum is 67.

The spelling of 961602969577 in words is "nine hundred sixty-one billion, six hundred two million, nine hundred sixty-nine thousand, five hundred seventy-seven".