128630113553 has 8 divisors (see below), whose sum is σ = 133074873000. Its totient is φ = 124185970048.

The previous prime is 128630113541. The next prime is 128630113571. The reversal of 128630113553 is 355311036821.

It can be written as a sum of positive squares in 4 ways, for example, as 2553988369 + 126076125184 = 50537^2 + 355072^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 128630113553 - 2²² = 128625919249 is a prime.

It is a super-2 number, since 2×128630113553² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128630113523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 292925 + ... + 585717.

It is an arithmetic number, because the mean of its divisors is an integer number (16634359125).

Almost surely, 2^128630113553 is an apocalyptic number.

It is an amenable number.

128630113553 is a deficient number, since it is larger than the sum of its proper divisors (4444759447).

128630113553 is a wasteful number, since it uses less digits than its factorization.

128630113553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307971.

The product of its (nonzero) digits is 64800, while the sum is 38.

The spelling of 128630113553 in words is "one hundred twenty-eight billion, six hundred thirty million, one hundred thirteen thousand, five hundred fifty-three".