549693426240 has 672 divisors, whose sum is σ = 2317547531520. Its totient is φ = 116781170688.

The previous prime is 549693426197. The next prime is 549693426253. The reversal of 549693426240 is 42624396945.

549693426240 is a `hidden beast` number, since 5 + 4 + 9 + 6 + 9 + 3 + 4 + 2 + 624 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 20287582 + ... + 20314658.

Almost surely, 2^549693426240 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 549693426240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1158773765760).

549693426240 is an abundant number, since it is smaller than the sum of its proper divisors (1767854105280).

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

549693426240 is a wasteful number, since it uses less digits than its factorization.

549693426240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27179 (or 27166 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 54.

The spelling of 549693426240 in words is "five hundred forty-nine billion, six hundred ninety-three million, four hundred twenty-six thousand, two hundred forty".