13380778071 has 20 divisors (see below), whose sum is σ = 19999755072. Its totient is φ = 8915527008.

The previous prime is 13380778049. The next prime is 13380778079. The reversal of 13380778071 is 17087708331.

It is not a de Polignac number, because 13380778071 - 2¹¹ = 13380776023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13380778079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 102355 + ... + 192971.

Almost surely, 2^13380778071 is an apocalyptic number.

13380778071 is a deficient number, since it is larger than the sum of its proper divisors (6618977001).

13380778071 is an equidigital number, since it uses as much as digits as its factorization.

13380778071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92452 (or 92443 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 45.

The spelling of 13380778071 in words is "thirteen billion, three hundred eighty million, seven hundred seventy-eight thousand, seventy-one".