28999404000 has 768 divisors, whose sum is σ = 122276044800. Its totient is φ = 6538752000.

The previous prime is 28999403971. The next prime is 28999404011. The reversal of 28999404000 is 40499982.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 67283785 + ... + 67284215.

It is an arithmetic number, because the mean of its divisors is an integer number (159213600).

Almost surely, 2^28999404000 is an apocalyptic number.

28999404000 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 28999404000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61138022400).

28999404000 is an abundant number, since it is smaller than the sum of its proper divisors (93276640800).

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

28999404000 is a wasteful number, since it uses less digits than its factorization.

28999404000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561 (or 537 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The spelling of 28999404000 in words is "twenty-eight billion, nine hundred ninety-nine million, four hundred four thousand".