5494912639128 has 192 divisors, whose sum is σ = 16348077158400. Its totient is φ = 1653531840000.

The previous prime is 5494912639109. The next prime is 5494912639141. The reversal of 5494912639128 is 8219362194945.

5494912639128 is a `hidden beast` number, since 5 + 494 + 9 + 12 + 6 + 3 + 9 + 128 = 666.

It is a Cunningham number, because it is equal to 2344123²-1.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 464130633 + ... + 464142471.

It is an arithmetic number, because the mean of its divisors is an integer number (85146235200).

Almost surely, 2^{5494912639128} 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 5494912639128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8174038579200).

5494912639128 is an abundant number, since it is smaller than the sum of its proper divisors (10853164519272).

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

5494912639128 is a wasteful number, since it uses less digits than its factorization.

5494912639128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15894 (or 15887 counting only the distinct ones).

The product of its digits is 33592320, while the sum is 63.

The spelling of 5494912639128 in words is "five trillion, four hundred ninety-four billion, nine hundred twelve million, six hundred thirty-nine thousand, one hundred twenty-eight".