1073854787461 has 2 divisors, whose sum is σ = 1073854787462. Its totient is φ = 1073854787460.

The previous prime is 1073854787449. The next prime is 1073854787471. The reversal of 1073854787461 is 1647874583701.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1041154936900 + 32699850561 = 1020370^2 + 180831^2 .

It is a cyclic number.

It is not a de Polignac number, because 1073854787461 - 2¹¹ = 1073854785413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1073854787461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1073854787471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536927393730 + 536927393731.

It is an arithmetic number, because the mean of its divisors is an integer number (536927393731).

Almost surely, 2^{1073854787461} is an apocalyptic number.

It is an amenable number.

1073854787461 is a deficient number, since it is larger than the sum of its proper divisors (1).

1073854787461 is an equidigital number, since it uses as much as digits as its factorization.

1073854787461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31610880, while the sum is 61.

The spelling of 1073854787461 in words is "one trillion, seventy-three billion, eight hundred fifty-four million, seven hundred eighty-seven thousand, four hundred sixty-one".