28433367512 has 32 divisors (see below), whose sum is σ = 58175582400. Its totient is φ = 12920608800.

The previous prime is 28433367511. The next prime is 28433367553. The reversal of 28433367512 is 21576333482.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28433367511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281039 + ... + 368577.

It is an arithmetic number, because the mean of its divisors is an integer number (1817986950).

Almost surely, 2^28433367512 is an apocalyptic number.

28433367512 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

28433367512 is an abundant number, since it is smaller than the sum of its proper divisors (29742214888).

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

28433367512 is a wasteful number, since it uses less digits than its factorization.

28433367512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91247 (or 91243 counting only the distinct ones).

The product of its digits is 725760, while the sum is 44.

The spelling of 28433367512 in words is "twenty-eight billion, four hundred thirty-three million, three hundred sixty-seven thousand, five hundred twelve".