1797635164357 has 2 divisors, whose sum is σ = 1797635164358. Its totient is φ = 1797635164356.

The previous prime is 1797635164343. The next prime is 1797635164433. The reversal of 1797635164357 is 7534615367971.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1537602480001 + 260032684356 = 1240001^2 + 509934^2 .

It is a cyclic number.

It is not a de Polignac number, because 1797635164357 - 2⁷ = 1797635164229 is a prime.

It is a super-4 number, since 4×1797635164357⁴ (a number of 50 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1797635162357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 898817582178 + 898817582179.

It is an arithmetic number, because the mean of its divisors is an integer number (898817582179).

Almost surely, 2^{1797635164357} is an apocalyptic number.

It is an amenable number.

1797635164357 is a deficient number, since it is larger than the sum of its proper divisors (1).

1797635164357 is an equidigital number, since it uses as much as digits as its factorization.

1797635164357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100018800, while the sum is 64.

The spelling of 1797635164357 in words is "one trillion, seven hundred ninety-seven billion, six hundred thirty-five million, one hundred sixty-four thousand, three hundred fifty-seven".