1238773871597 has 2 divisors, whose sum is σ = 1238773871598. Its totient is φ = 1238773871596.

The previous prime is 1238773871521. The next prime is 1238773871603. The reversal of 1238773871597 is 7951783778321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 859497722281 + 379276149316 = 927091^2 + 615854^2 .

It is a cyclic number.

It is not a de Polignac number, because 1238773871597 - 2¹⁴ = 1238773855213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1238773771597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 619386935798 + 619386935799.

It is an arithmetic number, because the mean of its divisors is an integer number (619386935799).

Almost surely, 2^{1238773871597} is an apocalyptic number.

It is an amenable number.

1238773871597 is a deficient number, since it is larger than the sum of its proper divisors (1).

1238773871597 is an equidigital number, since it uses as much as digits as its factorization.

1238773871597 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124467840, while the sum is 68.

The spelling of 1238773871597 in words is "one trillion, two hundred thirty-eight billion, seven hundred seventy-three million, eight hundred seventy-one thousand, five hundred ninety-seven".