13706340437 has 2 divisors, whose sum is σ = 13706340438. Its totient is φ = 13706340436.

The previous prime is 13706340413. The next prime is 13706340493. The reversal of 13706340437 is 73404360731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11339907121 + 2366433316 = 106489^2 + 48646^2 .

It is a cyclic number.

It is not a de Polignac number, because 13706340437 - 2²⁴ = 13689563221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13706340437.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13706340937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6853170218 + 6853170219.

It is an arithmetic number, because the mean of its divisors is an integer number (6853170219).

Almost surely, 2^13706340437 is an apocalyptic number.

It is an amenable number.

13706340437 is a deficient number, since it is larger than the sum of its proper divisors (1).

13706340437 is an equidigital number, since it uses as much as digits as its factorization.

13706340437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 38.

The spelling of 13706340437 in words is "thirteen billion, seven hundred six million, three hundred forty thousand, four hundred thirty-seven".