28359799434 has 32 divisors (see below), whose sum is σ = 65761856640. Its totient is φ = 9042254496.

The previous prime is 28359799421. The next prime is 28359799439. The reversal of 28359799434 is 43499795382.

28359799434 is a `hidden beast` number, since 2 + 8 + 3 + 597 + 9 + 9 + 4 + 34 = 666.

It is not an unprimeable number, because it can be changed into a prime (28359799439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11415747 + ... + 11418230.

It is an arithmetic number, because the mean of its divisors is an integer number (2055058020).

Almost surely, 2^28359799434 is an apocalyptic number.

28359799434 is an abundant number, since it is smaller than the sum of its proper divisors (37402057206).

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

28359799434 is a wasteful number, since it uses less digits than its factorization.

28359799434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22834011 (or 22834005 counting only the distinct ones).

The product of its digits is 58786560, while the sum is 63.

The spelling of 28359799434 in words is "twenty-eight billion, three hundred fifty-nine million, seven hundred ninety-nine thousand, four hundred thirty-four".