28154334288 has 40 divisors (see below), whose sum is σ = 72749241568. Its totient is φ = 9382557312.

The previous prime is 28154334269. The next prime is 28154334317. The reversal of 28154334288 is 88243345182.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 142206 + ... + 276642.

Almost surely, 2^28154334288 is an apocalyptic number.

It is an amenable number.

28154334288 is an abundant number, since it is smaller than the sum of its proper divisors (44594907280).

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

28154334288 is a wasteful number, since it uses less digits than its factorization.

28154334288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138811 (or 138805 counting only the distinct ones).

The product of its digits is 1474560, while the sum is 48.

The spelling of 28154334288 in words is "twenty-eight billion, one hundred fifty-four million, three hundred thirty-four thousand, two hundred eighty-eight".