13800678497 has 2 divisors, whose sum is σ = 13800678498. Its totient is φ = 13800678496.

The previous prime is 13800678469. The next prime is 13800678599. The reversal of 13800678497 is 79487600831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13049863696 + 750814801 = 114236^2 + 27401^2 .

It is an emirp because it is prime and its reverse (79487600831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13800678497 - 2²⁸ = 13532243041 is a prime.

It is not a weakly prime, because it can be changed into another prime (13800671497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6900339248 + 6900339249.

It is an arithmetic number, because the mean of its divisors is an integer number (6900339249).

Almost surely, 2^13800678497 is an apocalyptic number.

It is an amenable number.

13800678497 is a deficient number, since it is larger than the sum of its proper divisors (1).

13800678497 is an equidigital number, since it uses as much as digits as its factorization.

13800678497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2032128, while the sum is 53.

The spelling of 13800678497 in words is "thirteen billion, eight hundred million, six hundred seventy-eight thousand, four hundred ninety-seven".