551798935488 has 42 divisors (see below), whose sum is σ = 1581632019864. Its totient is φ = 183932978304.

The previous prime is 551798935481. The next prime is 551798935547. The reversal of 551798935488 is 884539897155.

551798935488 is a `hidden beast` number, since 5 + 5 + 1 + 79 + 8 + 9 + 3 + 548 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551798935481) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 478991556 + ... + 478992707.

Almost surely, 2^551798935488 is an apocalyptic number.

It is an amenable number.

551798935488 is an abundant number, since it is smaller than the sum of its proper divisors (1029833084376).

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

551798935488 is a wasteful number, since it uses less digits than its factorization.

551798935488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957984281 (or 957984268 counting only the distinct ones).

The product of its digits is 435456000, while the sum is 72.

The spelling of 551798935488 in words is "five hundred fifty-one billion, seven hundred ninety-eight million, nine hundred thirty-five thousand, four hundred eighty-eight".