549098862840 has 512 divisors, whose sum is σ = 2019253017600. Its totient is φ = 131622174720.

The previous prime is 549098862827. The next prime is 549098862877. The reversal of 549098862840 is 48268890945.

549098862840 is a `hidden beast` number, since 5 + 490 + 9 + 8 + 8 + 62 + 84 + 0 = 666.

It is a super-2 number, since 2×549098862840² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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, 451189912 + ... + 451191128.

It is an arithmetic number, because the mean of its divisors is an integer number (3943853550).

Almost surely, 2^549098862840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 549098862840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1009626508800).

549098862840 is an abundant number, since it is smaller than the sum of its proper divisors (1470154154760).

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

549098862840 is a wasteful number, since it uses less digits than its factorization.

549098862840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1644 (or 1634 counting only the distinct ones).

The product of its (nonzero) digits is 39813120, while the sum is 63.

The spelling of 549098862840 in words is "five hundred forty-nine billion, ninety-eight million, eight hundred sixty-two thousand, eight hundred forty".