5398918640640 has 264 divisors, whose sum is σ = 21379558412160. Its totient is φ = 1234038472704.

The previous prime is 5398918640603. The next prime is 5398918640653. The reversal of 5398918640640 is 460468198935.

5398918640640 is a `hidden beast` number, since 5 + 3 + 9 + 8 + 9 + 186 + 406 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8046300 + ... + 8691419.

Almost surely, 2^{5398918640640} is an apocalyptic number.

It is an amenable number.

5398918640640 is an abundant number, since it is smaller than the sum of its proper divisors (15980639771520).

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

5398918640640 is a wasteful number, since it uses less digits than its factorization.

5398918640640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16737757 (or 16737736 counting only the distinct ones).

The product of its (nonzero) digits is 44789760, while the sum is 63.

The spelling of 5398918640640 in words is "five trillion, three hundred ninety-eight billion, nine hundred eighteen million, six hundred forty thousand, six hundred forty".