549258974378 has 64 divisors (see below), whose sum is σ = 900707143680. Its totient is φ = 250237145088.

The previous prime is 549258974359. The next prime is 549258974419. The reversal of 549258974378 is 873479852945.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34894526 + ... + 34910262.

It is an arithmetic number, because the mean of its divisors is an integer number (14073549120).

Almost surely, 2^549258974378 is an apocalyptic number.

549258974378 is a deficient number, since it is larger than the sum of its proper divisors (351448169302).

549258974378 is a wasteful number, since it uses less digits than its factorization.

549258974378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16079.

The product of its digits is 609638400, while the sum is 71.

The spelling of 549258974378 in words is "five hundred forty-nine billion, two hundred fifty-eight million, nine hundred seventy-four thousand, three hundred seventy-eight".