6545939265 has 40 divisors (see below), whose sum is σ = 12244402368. Its totient is φ = 3339372960.

The previous prime is 6545939263. The next prime is 6545939291. The reversal of 6545939265 is 5629395456.

It is a happy number.

6545939265 is a `hidden beast` number, since 6 + 545 + 9 + 3 + 92 + 6 + 5 = 666.

It is not a de Polignac number, because 6545939265 - 2¹ = 6545939263 is a prime.

It is a super-2 number, since 2×6545939265² = 85698641722137480450, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6545939263) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 342051 + ... + 360680.

Almost surely, 2^6545939265 is an apocalyptic number.

It is an amenable number.

6545939265 is a deficient number, since it is larger than the sum of its proper divisors (5698463103).

6545939265 is a wasteful number, since it uses less digits than its factorization.

6545939265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702771 (or 702762 counting only the distinct ones).

The product of its digits is 8748000, while the sum is 54.

The square root of 6545939265 is about 80906.9790870973. The cubic root of 6545939265 is about 1870.6418974172.

The spelling of 6545939265 in words is "six billion, five hundred forty-five million, nine hundred thirty-nine thousand, two hundred sixty-five".