28429063526556 has 216 divisors, whose sum is σ = 90290378447360. Its totient is φ = 7382781236160.

The previous prime is 28429063526419. The next prime is 28429063526587. The reversal of 28429063526556 is 65562536092482.

It is a happy number.

28429063526556 is a `hidden beast` number, since 2 + 8 + 4 + 29 + 0 + 6 + 3 + 52 + 6 + 556 = 666.

It is a super-2 number, since 2×28429063526556² (a number of 28 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 28429063526493 and 28429063526502.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 166980585 + ... + 167150751.

Almost surely, 2^{28429063526556} 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 28429063526556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45145189223680).

28429063526556 is an abundant number, since it is smaller than the sum of its proper divisors (61861314920804).

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

28429063526556 is a wasteful number, since it uses less digits than its factorization.

28429063526556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175685 (or 175669 counting only the distinct ones).

The product of its (nonzero) digits is 186624000, while the sum is 63.

The spelling of 28429063526556 in words is "twenty-eight trillion, four hundred twenty-nine billion, sixty-three million, five hundred twenty-six thousand, five hundred fifty-six".