549498894945 has 128 divisors (see below), whose sum is σ = 1212367564800. Its totient is φ = 205099361280.

The previous prime is 549498894913. The next prime is 549498894983.

It is a happy number.

549498894945 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 549498894945 - 2⁵ = 549498894913 is a prime.

It is a super-2 number, since 2×549498894945² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 61006 + ... + 1050104.

It is an arithmetic number, because the mean of its divisors is an integer number (9471621600).

Almost surely, 2^549498894945 is an apocalyptic number.

549498894945 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

549498894945 is an abundant number, since it is smaller than the sum of its proper divisors (662868669855).

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

549498894945 is a wasteful number, since it uses less digits than its factorization.

549498894945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989175.

The product of its digits is 2687385600, while the sum is 78.

The spelling of 549498894945 in words is "five hundred forty-nine billion, four hundred ninety-eight million, eight hundred ninety-four thousand, nine hundred forty-five".