1361326105690 has 8 divisors (see below), whose sum is σ = 2450386990260. Its totient is φ = 544530442272.

The previous prime is 1361326105679. The next prime is 1361326105691. The reversal of 1361326105690 is 965016231631.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1103590169361 + 257735936329 = 1050519^2 + 507677^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1361326105690² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1361326105691) 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, 68066305275 + ... + 68066305294.

Almost surely, 2^{1361326105690} is an apocalyptic number.

1361326105690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1361326105690 is a deficient number, since it is larger than the sum of its proper divisors (1089060884570).

1361326105690 is a wasteful number, since it uses less digits than its factorization.

1361326105690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136132610576.

The product of its (nonzero) digits is 174960, while the sum is 43.

The spelling of 1361326105690 in words is "one trillion, three hundred sixty-one billion, three hundred twenty-six million, one hundred five thousand, six hundred ninety".