13706919973 has 2 divisors, whose sum is σ = 13706919974. Its totient is φ = 13706919972.

The previous prime is 13706919949. The next prime is 13706920013. The reversal of 13706919973 is 37991960731.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6972584004 + 6734335969 = 83502^2 + 82063^2 .

It is an emirp because it is prime and its reverse (37991960731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13706919973 - 2³³ = 5116985381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13706919673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6853459986 + 6853459987.

It is an arithmetic number, because the mean of its divisors is an integer number (6853459987).

Almost surely, 2^13706919973 is an apocalyptic number.

It is an amenable number.

13706919973 is a deficient number, since it is larger than the sum of its proper divisors (1).

13706919973 is an equidigital number, since it uses as much as digits as its factorization.

13706919973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1928934, while the sum is 55.

The spelling of 13706919973 in words is "thirteen billion, seven hundred six million, nine hundred nineteen thousand, nine hundred seventy-three".