7631528137728 has 88 divisors (see below), whose sum is σ = 22189968987360. Its totient is φ = 2312584273920.

The previous prime is 7631528137699. The next prime is 7631528137733. The reversal of 7631528137728 is 8277318251367.

It is a tau number, because it is divible by the number of its divisors (88).

It is a super-3 number, since 3×7631528137728³ (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112885363 + ... + 112952946.

Almost surely, 2^{7631528137728} is an apocalyptic number.

It is an amenable number.

7631528137728 is an abundant number, since it is smaller than the sum of its proper divisors (14558440849632).

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

7631528137728 is a wasteful number, since it uses less digits than its factorization.

7631528137728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225838343 (or 225838325 counting only the distinct ones).

The product of its digits is 23708160, while the sum is 60.

The spelling of 7631528137728 in words is "seven trillion, six hundred thirty-one billion, five hundred twenty-eight million, one hundred thirty-seven thousand, seven hundred twenty-eight".