6489869101 has 2 divisors, whose sum is σ = 6489869102. Its totient is φ = 6489869100.

The previous prime is 6489869093. The next prime is 6489869107. The reversal of 6489869101 is 1019689846.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6267888900 + 221980201 = 79170^2 + 14899^2 .

It is a cyclic number.

It is not a de Polignac number, because 6489869101 - 2³ = 6489869093 is a prime.

It is a super-2 number, since 2×6489869101² = 84236801896229096402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6489869107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3244934550 + 3244934551.

It is an arithmetic number, because the mean of its divisors is an integer number (3244934551).

Almost surely, 2^6489869101 is an apocalyptic number.

It is an amenable number.

6489869101 is a deficient number, since it is larger than the sum of its proper divisors (1).

6489869101 is an equidigital number, since it uses as much as digits as its factorization.

6489869101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 746496, while the sum is 52.

The square root of 6489869101 is about 80559.7238140747. The cubic root of 6489869101 is about 1865.2854923561.

The spelling of 6489869101 in words is "six billion, four hundred eighty-nine million, eight hundred sixty-nine thousand, one hundred one".