6549896387 has 8 divisors (see below), whose sum is σ = 6686254080. Its totient is φ = 6414383560.

The previous prime is 6549896383. The next prime is 6549896389. The reversal of 6549896387 is 7836989456.

6549896387 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6549896387 - 2² = 6549896383 is a prime.

It is a super-2 number, since 2×6549896387² = 85802285360871307538, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6549896383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195539 + ... + 226572.

It is an arithmetic number, because the mean of its divisors is an integer number (835781760).

Almost surely, 2^6549896387 is an apocalyptic number.

6549896387 is a deficient number, since it is larger than the sum of its proper divisors (136357693).

6549896387 is a wasteful number, since it uses less digits than its factorization.

6549896387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422433.

The product of its digits is 78382080, while the sum is 65.

The square root of 6549896387 is about 80931.4301554100. The cubic root of 6549896387 is about 1871.0187655178.

The spelling of 6549896387 in words is "six billion, five hundred forty-nine million, eight hundred ninety-six thousand, three hundred eighty-seven".