28142327907 has 72 divisors (see below), whose sum is σ = 45338018544. Its totient is φ = 17435860416.

The previous prime is 28142327897. The next prime is 28142327933. The reversal of 28142327907 is 70972324182.

28142327907 is a `hidden beast` number, since 281 + 42 + 327 + 9 + 0 + 7 = 666.

It is not a de Polignac number, because 28142327907 - 2⁷ = 28142327779 is a prime.

It is a super-2 number, since 2×28142327907² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28142327107) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4646293 + ... + 4652345.

It is an arithmetic number, because the mean of its divisors is an integer number (629694702).

Almost surely, 2^28142327907 is an apocalyptic number.

28142327907 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

28142327907 is a deficient number, since it is larger than the sum of its proper divisors (17195690637).

28142327907 is an equidigital number, since it uses as much as digits as its factorization.

28142327907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6159 (or 6128 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The spelling of 28142327907 in words is "twenty-eight billion, one hundred forty-two million, three hundred twenty-seven thousand, nine hundred seven".