1954391276941 has 2 divisors, whose sum is σ = 1954391276942. Its totient is φ = 1954391276940.

The previous prime is 1954391276927. The next prime is 1954391277001. The reversal of 1954391276941 is 1496721934591.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1848658999716 + 105732277225 = 1359654^2 + 325165^2 .

It is a cyclic number.

It is not a de Polignac number, because 1954391276941 - 2⁷ = 1954391276813 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1954391276941.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1954391270941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 977195638470 + 977195638471.

It is an arithmetic number, because the mean of its divisors is an integer number (977195638471).

Almost surely, 2^{1954391276941} is an apocalyptic number.

It is an amenable number.

1954391276941 is a deficient number, since it is larger than the sum of its proper divisors (1).

1954391276941 is an equidigital number, since it uses as much as digits as its factorization.

1954391276941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14696640, while the sum is 61.

The spelling of 1954391276941 in words is "one trillion, nine hundred fifty-four billion, three hundred ninety-one million, two hundred seventy-six thousand, nine hundred forty-one".