28039542960 has 720 divisors, whose sum is σ = 109726289568. Its totient is φ = 5882511360.

The previous prime is 28039542953. The next prime is 28039542991. The reversal of 28039542960 is 6924593082.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 109103152 + ... + 109103408.

Almost surely, 2^28039542960 is an apocalyptic number.

28039542960 is a gapful number since it is divisible by the number (20) 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 28039542960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54863144784).

28039542960 is an abundant number, since it is smaller than the sum of its proper divisors (81686746608).

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

28039542960 is a wasteful number, since it uses less digits than its factorization.

28039542960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342 (or 308 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 48.

The spelling of 28039542960 in words is "twenty-eight billion, thirty-nine million, five hundred forty-two thousand, nine hundred sixty".