1961735810741 has 32 divisors (see below), whose sum is σ = 2337036902400. Its totient is φ = 1645272660528.

The previous prime is 1961735810717. The next prime is 1961735810773. The reversal of 1961735810741 is 1470185371691.

It is a de Polignac number, because none of the positive numbers 2^k-1961735810741 is a prime.

It is a super-2 number, since 2×1961735810741² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1961735810141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69741506 + ... + 69769628.

It is an arithmetic number, because the mean of its divisors is an integer number (73032403200).

Almost surely, 2^{1961735810741} is an apocalyptic number.

It is an amenable number.

1961735810741 is a deficient number, since it is larger than the sum of its proper divisors (375301091659).

1961735810741 is an equidigital number, since it uses as much as digits as its factorization.

1961735810741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32518 (or 32504 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 53.

The spelling of 1961735810741 in words is "one trillion, nine hundred sixty-one billion, seven hundred thirty-five million, eight hundred ten thousand, seven hundred forty-one".