6544049131 has 4 divisors (see below), whose sum is σ = 6576934000. Its totient is φ = 6511164264.

The previous prime is 6544049123. The next prime is 6544049137. The reversal of 6544049131 is 1319404456.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6544049131 - 2³ = 6544049123 is a prime.

It is a super-2 number, since 2×6544049131² = 85649158057883710322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6544049137) 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, 16442136 + ... + 16442533.

It is an arithmetic number, because the mean of its divisors is an integer number (1644233500).

Almost surely, 2^6544049131 is an apocalyptic number.

6544049131 is a deficient number, since it is larger than the sum of its proper divisors (32884869).

6544049131 is a wasteful number, since it uses less digits than its factorization.

6544049131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32884868.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 6544049131 is about 80895.2973355065. The cubic root of 6544049131 is about 1870.4618313701.

The spelling of 6544049131 in words is "six billion, five hundred forty-four million, forty-nine thousand, one hundred thirty-one".