1373003467861 has 2 divisors, whose sum is σ = 1373003467862. Its totient is φ = 1373003467860.

The previous prime is 1373003467813. The next prime is 1373003467883. The reversal of 1373003467861 is 1687643003731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1059728183761 + 313275284100 = 1029431^2 + 559710^2 .

It is a cyclic number.

It is not a de Polignac number, because 1373003467861 - 2²¹ = 1373001370709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1373003467061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 686501733930 + 686501733931.

It is an arithmetic number, because the mean of its divisors is an integer number (686501733931).

Almost surely, 2^{1373003467861} is an apocalyptic number.

It is an amenable number.

1373003467861 is a deficient number, since it is larger than the sum of its proper divisors (1).

1373003467861 is an equidigital number, since it uses as much as digits as its factorization.

1373003467861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1524096, while the sum is 49.

The spelling of 1373003467861 in words is "one trillion, three hundred seventy-three billion, three million, four hundred sixty-seven thousand, eight hundred sixty-one".