28077573888 has 576 divisors, whose sum is σ = 104391168000. Its totient is φ = 7396945920.

The previous prime is 28077573841. The next prime is 28077573941. The reversal of 28077573888 is 88837577082.

It is a tau number, because it is divible by the number of its divisors (576).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 30820153 + ... + 30821063.

Almost surely, 2^28077573888 is an apocalyptic number.

28077573888 is a gapful number since it is divisible by the number (28) 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 28077573888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52195584000).

28077573888 is an abundant number, since it is smaller than the sum of its proper divisors (76313594112).

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

28077573888 is an equidigital number, since it uses as much as digits as its factorization.

28077573888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970 (or 936 counting only the distinct ones).

The product of its (nonzero) digits is 42147840, while the sum is 63.

The spelling of 28077573888 in words is "twenty-eight billion, seventy-seven million, five hundred seventy-three thousand, eight hundred eighty-eight".