28572876864 has 336 divisors, whose sum is σ = 98822256000. Its totient is φ = 7880592384.

The previous prime is 28572876859. The next prime is 28572876869. The reversal of 28572876864 is 46867827582.

It is an interprime number because it is at equal distance from previous prime (28572876859) and next prime (28572876869).

It is a tau number, because it is divible by the number of its divisors (336).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28572876869) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5726979 + ... + 5731965.

Almost surely, 2^28572876864 is an apocalyptic number.

28572876864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28572876864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49411128000).

28572876864 is an abundant number, since it is smaller than the sum of its proper divisors (70249379136).

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

28572876864 is a wasteful number, since it uses less digits than its factorization.

28572876864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5055 (or 5028 counting only the distinct ones).

The product of its digits is 72253440, while the sum is 63.

The spelling of 28572876864 in words is "twenty-eight billion, five hundred seventy-two million, eight hundred seventy-six thousand, eight hundred sixty-four".