28698252480 has 448 divisors, whose sum is σ = 105572966400. Its totient is φ = 7330590720.

The previous prime is 28698252383. The next prime is 28698252493. The reversal of 28698252480 is 8425289682.

It is a happy number.

28698252480 is a `hidden beast` number, since 2 + 86 + 9 + 82 + 5 + 2 + 480 = 666.

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

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, 29194069 + ... + 29195051.

Almost surely, 2^28698252480 is an apocalyptic number.

28698252480 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 28698252480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52786483200).

28698252480 is an abundant number, since it is smaller than the sum of its proper divisors (76874713920).

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

28698252480 is a wasteful number, since it uses less digits than its factorization.

28698252480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149 (or 1133 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 54.

The spelling of 28698252480 in words is "twenty-eight billion, six hundred ninety-eight million, two hundred fifty-two thousand, four hundred eighty".