1329138412047 has 24 divisors (see below), whose sum is σ = 1966755197264. Its totient is φ = 864498386304.

The previous prime is 1329138412039. The next prime is 1329138412061. The reversal of 1329138412047 is 7402148319231.

1329138412047 is a `hidden beast` number, since 132 + 91 + 384 + 12 + 0 + 47 = 666.

It is not a de Polignac number, because 1329138412047 - 2³ = 1329138412039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1329138411993 and 1329138412011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1329138412097) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1618678 + ... + 2297475.

Almost surely, 2^{1329138412047} is an apocalyptic number.

1329138412047 is a deficient number, since it is larger than the sum of its proper divisors (637616785217).

1329138412047 is a wasteful number, since it uses less digits than its factorization.

1329138412047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3917079 (or 3917076 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 1329138412047 in words is "one trillion, three hundred twenty-nine billion, one hundred thirty-eight million, four hundred twelve thousand, forty-seven".