1361725448429 has 2 divisors, whose sum is σ = 1361725448430. Its totient is φ = 1361725448428.

The previous prime is 1361725448399. The next prime is 1361725448449. The reversal of 1361725448429 is 9248445271631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 684256531204 + 677468917225 = 827198^2 + 823085^2 .

It is a cyclic number.

It is not a de Polignac number, because 1361725448429 - 2¹² = 1361725444333 is a prime.

It is a super-2 number, since 2×1361725448429² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1361725448449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 680862724214 + 680862724215.

It is an arithmetic number, because the mean of its divisors is an integer number (680862724215).

Almost surely, 2^{1361725448429} is an apocalyptic number.

It is an amenable number.

1361725448429 is a deficient number, since it is larger than the sum of its proper divisors (1).

1361725448429 is an equidigital number, since it uses as much as digits as its factorization.

1361725448429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11612160, while the sum is 56.

The spelling of 1361725448429 in words is "one trillion, three hundred sixty-one billion, seven hundred twenty-five million, four hundred forty-eight thousand, four hundred twenty-nine".