28001451548 has 24 divisors (see below), whose sum is σ = 56007710304. Its totient is φ = 11999592000.

The previous prime is 28001451479. The next prime is 28001451557. The reversal of 28001451548 is 84515410082.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 353258 + ... + 425198.

It is an arithmetic number, because the mean of its divisors is an integer number (2333654596).

Almost surely, 2^28001451548 is an apocalyptic number.

28001451548 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28001451548 is an abundant number, since it is smaller than the sum of its proper divisors (28006258756).

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

28001451548 is a wasteful number, since it uses less digits than its factorization.

28001451548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85853 (or 85851 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 38.

The spelling of 28001451548 in words is "twenty-eight billion, one million, four hundred fifty-one thousand, five hundred forty-eight".