1361038605541 has 16 divisors (see below), whose sum is σ = 1407767639040. Its totient is φ = 1315054241280.

The previous prime is 1361038605539. The next prime is 1361038605547. The reversal of 1361038605541 is 1455068301631.

It is a cyclic number.

It is not a de Polignac number, because 1361038605541 - 2¹ = 1361038605539 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361038605547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38363551 + ... + 38399011.

It is an arithmetic number, because the mean of its divisors is an integer number (87985477440).

Almost surely, 2^{1361038605541} is an apocalyptic number.

It is an amenable number.

1361038605541 is a deficient number, since it is larger than the sum of its proper divisors (46729033499).

1361038605541 is a wasteful number, since it uses less digits than its factorization.

1361038605541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45924.

The product of its (nonzero) digits is 259200, while the sum is 43.

The spelling of 1361038605541 in words is "one trillion, three hundred sixty-one billion, thirty-eight million, six hundred five thousand, five hundred forty-one".