961779962701 has 2 divisors, whose sum is σ = 961779962702. Its totient is φ = 961779962700.

The previous prime is 961779962683. The next prime is 961779962831. The reversal of 961779962701 is 107269977169.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 961743069225 + 36893476 = 980685^2 + 6074^2 .

It is a cyclic number.

It is not a de Polignac number, because 961779962701 - 2⁹ = 961779962189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (961779942701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 480889981350 + 480889981351.

It is an arithmetic number, because the mean of its divisors is an integer number (480889981351).

Almost surely, 2^961779962701 is an apocalyptic number.

It is an amenable number.

961779962701 is a deficient number, since it is larger than the sum of its proper divisors (1).

961779962701 is an equidigital number, since it uses as much as digits as its factorization.

961779962701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18003384, while the sum is 64.

The spelling of 961779962701 in words is "nine hundred sixty-one billion, seven hundred seventy-nine million, nine hundred sixty-two thousand, seven hundred one".