13745470997 has 2 divisors, whose sum is σ = 13745470998. Its totient is φ = 13745470996.

The previous prime is 13745470987. The next prime is 13745471063. The reversal of 13745470997 is 79907454731.

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., 9070467121 + 4675003876 = 95239^2 + 68374^2 .

It is a cyclic number.

It is not a de Polignac number, because 13745470997 - 2¹⁶ = 13745405461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13745470957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6872735498 + 6872735499.

It is an arithmetic number, because the mean of its divisors is an integer number (6872735499).

Almost surely, 2^13745470997 is an apocalyptic number.

It is an amenable number.

13745470997 is a deficient number, since it is larger than the sum of its proper divisors (1).

13745470997 is an equidigital number, since it uses as much as digits as its factorization.

13745470997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6667920, while the sum is 56.

The spelling of 13745470997 in words is "thirteen billion, seven hundred forty-five million, four hundred seventy thousand, nine hundred ninety-seven".