28037855929 has 2 divisors, whose sum is σ = 28037855930. Its totient is φ = 28037855928.

The previous prime is 28037855927. The next prime is 28037855939. The reversal of 28037855929 is 92955873082.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27940794025 + 97061904 = 167155^2 + 9852^2 .

It is a cyclic number.

It is not a de Polignac number, because 28037855929 - 2¹ = 28037855927 is a prime.

It is a super-2 number, since 2×28037855929² (a number of 22 digits) contains 22 as substring.

Together with 28037855927, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (28037855927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14018927964 + 14018927965.

It is an arithmetic number, because the mean of its divisors is an integer number (14018927965).

Almost surely, 2^28037855929 is an apocalyptic number.

It is an amenable number.

28037855929 is a deficient number, since it is larger than the sum of its proper divisors (1).

28037855929 is an equidigital number, since it uses as much as digits as its factorization.

28037855929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10886400, while the sum is 58.

The spelling of 28037855929 in words is "twenty-eight billion, thirty-seven million, eight hundred fifty-five thousand, nine hundred twenty-nine".