2961602001881 has 2 divisors, whose sum is σ = 2961602001882. Its totient is φ = 2961602001880.

The previous prime is 2961602001877. The next prime is 2961602001889. The reversal of 2961602001881 is 1881002061692.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1668114318025 + 1293487683856 = 1291555^2 + 1137316^2 .

It is a cyclic number.

It is not a de Polignac number, because 2961602001881 - 2² = 2961602001877 is a prime.

It is a super-2 number, since 2×2961602001881² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2961602001889) 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, 1480801000940 + 1480801000941.

It is an arithmetic number, because the mean of its divisors is an integer number (1480801000941).

Almost surely, 2^{2961602001881} is an apocalyptic number.

It is an amenable number.

2961602001881 is a deficient number, since it is larger than the sum of its proper divisors (1).

2961602001881 is an equidigital number, since it uses as much as digits as its factorization.

2961602001881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 44.

The spelling of 2961602001881 in words is "two trillion, nine hundred sixty-one billion, six hundred two million, one thousand, eight hundred eighty-one".