28627501056 has 544 divisors, whose sum is σ = 99857227776. Its totient is φ = 7077888000.

The previous prime is 28627501051. The next prime is 28627501081. The reversal of 28627501056 is 65010572682.

It is a super-2 number, since 2×28627501056² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 28627500999 and 28627501017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28627501051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 469303266 + ... + 469303326.

Almost surely, 2^28627501056 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 28627501056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49928613888).

28627501056 is an abundant number, since it is smaller than the sum of its proper divisors (71229726720).

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

28627501056 is an equidigital number, since it uses as much as digits as its factorization.

28627501056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 42.

The spelling of 28627501056 in words is "twenty-eight billion, six hundred twenty-seven million, five hundred one thousand, fifty-six".