6539468892149 has 4 divisors (see below), whose sum is σ = 6883651465440. Its totient is φ = 6195286318860.

The previous prime is 6539468892127. The next prime is 6539468892211. The reversal of 6539468892149 is 9412988649356.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6539468892149 - 2³⁶ = 6470749415413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6539468892449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172091286617 + ... + 172091286654.

It is an arithmetic number, because the mean of its divisors is an integer number (1720912866360).

Almost surely, 2^{6539468892149} is an apocalyptic number.

It is an amenable number.

6539468892149 is a deficient number, since it is larger than the sum of its proper divisors (344182573291).

6539468892149 is a wasteful number, since it uses less digits than its factorization.

6539468892149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344182573290.

The product of its digits is 806215680, while the sum is 74.

The spelling of 6539468892149 in words is "six trillion, five hundred thirty-nine billion, four hundred sixty-eight million, eight hundred ninety-two thousand, one hundred forty-nine".