13740156817 has 2 divisors, whose sum is σ = 13740156818. Its totient is φ = 13740156816.

The previous prime is 13740156809. The next prime is 13740156827. The reversal of 13740156817 is 71865104731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13345101441 + 395055376 = 115521^2 + 19876^2 .

It is a cyclic number.

It is not a de Polignac number, because 13740156817 - 2³ = 13740156809 is a prime.

It is not a weakly prime, because it can be changed into another prime (13740156827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6870078408 + 6870078409.

It is an arithmetic number, because the mean of its divisors is an integer number (6870078409).

Almost surely, 2^13740156817 is an apocalyptic number.

It is an amenable number.

13740156817 is a deficient number, since it is larger than the sum of its proper divisors (1).

13740156817 is an equidigital number, since it uses as much as digits as its factorization.

13740156817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141120, while the sum is 43.

The spelling of 13740156817 in words is "thirteen billion, seven hundred forty million, one hundred fifty-six thousand, eight hundred seventeen".