28428248937 has 8 divisors (see below), whose sum is σ = 41350180320. Its totient is φ = 17229241760.

The previous prime is 28428248923. The next prime is 28428248971. The reversal of 28428248937 is 73984282482.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28428248937 - 2¹⁸ = 28427986793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28428248977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 430731012 + ... + 430731077.

It is an arithmetic number, because the mean of its divisors is an integer number (5168772540).

Almost surely, 2^28428248937 is an apocalyptic number.

It is an amenable number.

28428248937 is a deficient number, since it is larger than the sum of its proper divisors (12921931383).

28428248937 is a wasteful number, since it uses less digits than its factorization.

28428248937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861462103.

The product of its digits is 12386304, while the sum is 57.

The spelling of 28428248937 in words is "twenty-eight billion, four hundred twenty-eight million, two hundred forty-eight thousand, nine hundred thirty-seven".