961793777413 has 32 divisors (see below), whose sum is σ = 1218744320000. Its totient is φ = 755811589680.

The previous prime is 961793777389. The next prime is 961793777431. The reversal of 961793777413 is 314777397169.

It is not a de Polignac number, because 961793777413 - 2¹³ = 961793769221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (961793774413) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2178333 + ... + 2582386.

It is an arithmetic number, because the mean of its divisors is an integer number (38085760000).

Almost surely, 2^961793777413 is an apocalyptic number.

It is an amenable number.

961793777413 is a deficient number, since it is larger than the sum of its proper divisors (256950542587).

961793777413 is a wasteful number, since it uses less digits than its factorization.

961793777413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4760790 (or 4760776 counting only the distinct ones).

The product of its digits is 42007896, while the sum is 64.

The spelling of 961793777413 in words is "nine hundred sixty-one billion, seven hundred ninety-three million, seven hundred seventy-seven thousand, four hundred thirteen".