8477868451249 has 2 divisors, whose sum is σ = 8477868451250. Its totient is φ = 8477868451248.

The previous prime is 8477868451237. The next prime is 8477868451279. The reversal of 8477868451249 is 9421548687748.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8283689859600 + 194178591649 = 2878140^2 + 440657^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8477868451249 is a prime.

It is not a weakly prime, because it can be changed into another prime (8477868451279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4238934225624 + 4238934225625.

It is an arithmetic number, because the mean of its divisors is an integer number (4238934225625).

Almost surely, 2^{8477868451249} is an apocalyptic number.

It is an amenable number.

8477868451249 is a deficient number, since it is larger than the sum of its proper divisors (1).

8477868451249 is an equidigital number, since it uses as much as digits as its factorization.

8477868451249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 867041280, while the sum is 73.

The spelling of 8477868451249 in words is "eight trillion, four hundred seventy-seven billion, eight hundred sixty-eight million, four hundred fifty-one thousand, two hundred forty-nine".