549527860861 has 16 divisors (see below), whose sum is σ = 630531145728. Its totient is φ = 469150038000.

The previous prime is 549527860823. The next prime is 549527860873. The reversal of 549527860861 is 168068725945.

It is not a de Polignac number, because 549527860861 - 2²⁷ = 549393643133 is a prime.

It is a super-2 number, since 2×549527860861² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 549527860861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549527860061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11853156 + ... + 11899426.

It is an arithmetic number, because the mean of its divisors is an integer number (39408196608).

Almost surely, 2^549527860861 is an apocalyptic number.

It is an amenable number.

549527860861 is a deficient number, since it is larger than the sum of its proper divisors (81003284867).

549527860861 is a wasteful number, since it uses less digits than its factorization.

549527860861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52992.

The product of its (nonzero) digits is 29030400, while the sum is 61.

The spelling of 549527860861 in words is "five hundred forty-nine billion, five hundred twenty-seven million, eight hundred sixty thousand, eight hundred sixty-one".