1941723961 has 4 divisors (see below), whose sum is σ = 1989083124. Its totient is φ = 1894364800.

The previous prime is 1941723941. The next prime is 1941723989. The reversal of 1941723961 is 1693271491.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 820478736 + 1121245225 = 28644^2 + 33485^2 .

It is a cyclic number.

It is not a de Polignac number, because 1941723961 - 2¹¹ = 1941721913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1941723941) 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 3 ways as a sum of consecutive naturals, for example, 23679520 + ... + 23679601.

It is an arithmetic number, because the mean of its divisors is an integer number (497270781).

Almost surely, 2^1941723961 is an apocalyptic number.

It is an amenable number.

1941723961 is a deficient number, since it is larger than the sum of its proper divisors (47359163).

1941723961 is an equidigital number, since it uses as much as digits as its factorization.

1941723961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47359162.

The product of its digits is 81648, while the sum is 43.

The square root of 1941723961 is about 44064.9970044252. The cubic root of 1941723961 is about 1247.5630303774.

The spelling of 1941723961 in words is "one billion, nine hundred forty-one million, seven hundred twenty-three thousand, nine hundred sixty-one".