1361206057751 has 2 divisors, whose sum is σ = 1361206057752. Its totient is φ = 1361206057750.

The previous prime is 1361206057723. The next prime is 1361206057763. The reversal of 1361206057751 is 1577506021631.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (1577506021631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1361206057751 - 2²² = 1361201863447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1361206057721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 680603028875 + 680603028876.

It is an arithmetic number, because the mean of its divisors is an integer number (680603028876).

Almost surely, 2^{1361206057751} is an apocalyptic number.

1361206057751 is a deficient number, since it is larger than the sum of its proper divisors (1).

1361206057751 is an equidigital number, since it uses as much as digits as its factorization.

1361206057751 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 264600, while the sum is 44.

The spelling of 1361206057751 in words is "one trillion, three hundred sixty-one billion, two hundred six million, fifty-seven thousand, seven hundred fifty-one".