1361669729004 has 144 divisors (see below), whose sum is σ = 3716306513920. Its totient is φ = 417898569600.

The previous prime is 1361669728981. The next prime is 1361669729027. The reversal of 1361669729004 is 4009279661631.

1361669729004 is a `hidden beast` number, since 13 + 616 + 6 + 9 + 7 + 2 + 9 + 0 + 0 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (1361669728981) and next prime (1361669729027).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 533777529 + ... + 533780079.

Almost surely, 2^{1361669729004} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1361669729004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1858153256960).

1361669729004 is an abundant number, since it is smaller than the sum of its proper divisors (2354636784916).

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

1361669729004 is a wasteful number, since it uses less digits than its factorization.

1361669729004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5060 (or 5055 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 54.

The spelling of 1361669729004 in words is "one trillion, three hundred sixty-one billion, six hundred sixty-nine million, seven hundred twenty-nine thousand, four".