549065587969 has 8 divisors (see below), whose sum is σ = 562970200968. Its totient is φ = 535185392640.

The previous prime is 549065587957. The next prime is 549065587981. The reversal of 549065587969 is 969785560945.

It is an interprime number because it is at equal distance from previous prime (549065587957) and next prime (549065587981).

It can be written as a sum of positive squares in 4 ways, for example, as 8417145025 + 540648442944 = 91745^2 + 735288^2 .

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 549065587969 - 2⁹ = 549065587457 is a prime.

It is a super-2 number, since 2×549065587969² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (549065587919) 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, 6058872 + ... + 6148825.

It is an arithmetic number, because the mean of its divisors is an integer number (70371275121).

Almost surely, 2^549065587969 is an apocalyptic number.

It is an amenable number.

549065587969 is a deficient number, since it is larger than the sum of its proper divisors (13904612999).

549065587969 is a wasteful number, since it uses less digits than its factorization.

549065587969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12208835.

The product of its (nonzero) digits is 734832000, while the sum is 73.

The spelling of 549065587969 in words is "five hundred forty-nine billion, sixty-five million, five hundred eighty-seven thousand, nine hundred sixty-nine".