28706198400000 has 3168 divisors, whose sum is σ = 121338393845760. Its totient is φ = 6469632000000.

The previous prime is 28706198399953. The next prime is 28706198400059. The reversal of 28706198400000 is 489160782.

28706198400000 is a `hidden beast` number, since 28 + 7 + 0 + 619 + 8 + 4 + 0 + 0 + 0 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (3168).

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

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 363369599961 + ... + 363369600039.

Almost surely, 2^{28706198400000} is an apocalyptic number.

28706198400000 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 28706198400000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60669196922880).

28706198400000 is an abundant number, since it is smaller than the sum of its proper divisors (92632195445760).

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

28706198400000 is a wasteful number, since it uses less digits than its factorization.

28706198400000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The spelling of 28706198400000 in words is "twenty-eight trillion, seven hundred six billion, one hundred ninety-eight million, four hundred thousand".