549512795623 has 48 divisors (see below), whose sum is σ = 644285537280. Its totient is φ = 467640423360.

The previous prime is 549512795591. The next prime is 549512795627. The reversal of 549512795623 is 326597215945.

It is a happy number.

It is not a de Polignac number, because 549512795623 - 2⁵ = 549512795591 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549512795627) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12392590 + ... + 12436852.

It is an arithmetic number, because the mean of its divisors is an integer number (13422615360).

Almost surely, 2^549512795623 is an apocalyptic number.

549512795623 is a deficient number, since it is larger than the sum of its proper divisors (94772741657).

549512795623 is a wasteful number, since it uses less digits than its factorization.

549512795623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44428 (or 44417 counting only the distinct ones).

The product of its digits is 20412000, while the sum is 58.

The spelling of 549512795623 in words is "five hundred forty-nine billion, five hundred twelve million, seven hundred ninety-five thousand, six hundred twenty-three".