28499636040120 has 1152 divisors, whose sum is σ = 115271715686400. Its totient is φ = 6203032399872.

The previous prime is 28499636040103. The next prime is 28499636040149. The reversal of 28499636040120 is 2104063699482.

28499636040120 is a `hidden beast` number, since 2 + 8 + 4 + 9 + 9 + 6 + 3 + 604 + 0 + 1 + 20 = 666.

It is a super-2 number, since 2×28499636040120² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

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, 8602363584 + ... + 8602366896.

It is an arithmetic number, because the mean of its divisors is an integer number (100062253200).

Almost surely, 2^{28499636040120} is an apocalyptic number.

28499636040120 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 28499636040120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57635857843200).

28499636040120 is an abundant number, since it is smaller than the sum of its proper divisors (86772079646280).

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

28499636040120 is a wasteful number, since it uses less digits than its factorization.

28499636040120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3631 (or 3592 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 54.

The spelling of 28499636040120 in words is "twenty-eight trillion, four hundred ninety-nine billion, six hundred thirty-six million, forty thousand, one hundred twenty".