6986504621449 has 2 divisors, whose sum is σ = 6986504621450. Its totient is φ = 6986504621448.

The previous prime is 6986504621429. The next prime is 6986504621471. The reversal of 6986504621449 is 9441264056896.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4344173095824 + 2642331525625 = 2084268^2 + 1625525^2 .

It is a cyclic number.

It is not a de Polignac number, because 6986504621449 - 2⁵ = 6986504621417 is a prime.

It is a super-2 number, since 2×6986504621449² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6986504621419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3493252310724 + 3493252310725.

It is an arithmetic number, because the mean of its divisors is an integer number (3493252310725).

Almost surely, 2^{6986504621449} is an apocalyptic number.

It is an amenable number.

6986504621449 is a deficient number, since it is larger than the sum of its proper divisors (1).

6986504621449 is an equidigital number, since it uses as much as digits as its factorization.

6986504621449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 89579520, while the sum is 64.

The spelling of 6986504621449 in words is "six trillion, nine hundred eighty-six billion, five hundred four million, six hundred twenty-one thousand, four hundred forty-nine".