1361326145604 has 12 divisors (see below), whose sum is σ = 3176427673104. Its totient is φ = 453775381864.

The previous prime is 1361326145593. The next prime is 1361326145609. The reversal of 1361326145604 is 4065416231631.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1361326145609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56721922722 + ... + 56721922745.

It is an arithmetic number, because the mean of its divisors is an integer number (264702306092).

Almost surely, 2^{1361326145604} is an apocalyptic number.

It is an amenable number.

1361326145604 is an abundant number, since it is smaller than the sum of its proper divisors (1815101527500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1361326145604 is a wasteful number, since it uses less digits than its factorization.

1361326145604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113443845474 (or 113443845472 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 42.

The spelling of 1361326145604 in words is "one trillion, three hundred sixty-one billion, three hundred twenty-six million, one hundred forty-five thousand, six hundred four".