1361520005104 has 80 divisors (see below), whose sum is σ = 3067984707840. Its totient is φ = 573227159040.

The previous prime is 1361520005009. The next prime is 1361520005117. The reversal of 1361520005104 is 4015000251631.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9716887 + ... + 9856009.

It is an arithmetic number, because the mean of its divisors is an integer number (38349808848).

Almost surely, 2^{1361520005104} is an apocalyptic number.

1361520005104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1361520005104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1533992353920).

1361520005104 is an abundant number, since it is smaller than the sum of its proper divisors (1706464702736).

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

1361520005104 is a wasteful number, since it uses less digits than its factorization.

1361520005104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140678 (or 140672 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 1361520005104 its reverse (4015000251631), we get a palindrome (5376520256735).

The spelling of 1361520005104 in words is "one trillion, three hundred sixty-one billion, five hundred twenty million, five thousand, one hundred four".