13672131973 has 2 divisors, whose sum is σ = 13672131974. Its totient is φ = 13672131972.

The previous prime is 13672131931. The next prime is 13672132049. The reversal of 13672131973 is 37913127631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11226038209 + 2446093764 = 105953^2 + 49458^2 .

It is a cyclic number.

It is not a de Polignac number, because 13672131973 - 2²¹ = 13670034821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13672131173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6836065986 + 6836065987.

It is an arithmetic number, because the mean of its divisors is an integer number (6836065987).

Almost surely, 2^13672131973 is an apocalyptic number.

It is an amenable number.

13672131973 is a deficient number, since it is larger than the sum of its proper divisors (1).

13672131973 is an equidigital number, since it uses as much as digits as its factorization.

13672131973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 142884, while the sum is 43.

The spelling of 13672131973 in words is "thirteen billion, six hundred seventy-two million, one hundred thirty-one thousand, nine hundred seventy-three".