549503792640 has 960 divisors, whose sum is σ = 2172960421632. Its totient is φ = 131980492800.

The previous prime is 549503792603. The next prime is 549503792671. The reversal of 549503792640 is 46297305945.

549503792640 is a `hidden beast` number, since 5 + 4 + 9 + 5 + 0 + 379 + 264 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (960).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

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, 896416974 + ... + 896417586.

Almost surely, 2^549503792640 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 549503792640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1086480210816).

549503792640 is an abundant number, since it is smaller than the sum of its proper divisors (1623456628992).

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

549503792640 is a wasteful number, since it uses less digits than its factorization.

549503792640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793 (or 765 counting only the distinct ones).

The product of its (nonzero) digits is 8164800, while the sum is 54.

The spelling of 549503792640 in words is "five hundred forty-nine billion, five hundred three million, seven hundred ninety-two thousand, six hundred forty".