549697261048 has 32 divisors (see below), whose sum is σ = 1168384870800. Its totient is φ = 240353457408.

The previous prime is 549697261037. The next prime is 549697261093. The reversal of 549697261048 is 840162796945.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139091461 + ... + 139095412.

Almost surely, 2^549697261048 is an apocalyptic number.

It is an amenable number.

549697261048 is an abundant number, since it is smaller than the sum of its proper divisors (618687609752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

549697261048 is a wasteful number, since it uses less digits than its factorization.

549697261048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278186911 (or 278186907 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 61.

The spelling of 549697261048 in words is "five hundred forty-nine billion, six hundred ninety-seven million, two hundred sixty-one thousand, forty-eight".