28241877031 has 4 divisors (see below), whose sum is σ = 29469784752. Its totient is φ = 27013969312.

The previous prime is 28241876989. The next prime is 28241877049. The reversal of 28241877031 is 13077814282.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28241877031 - 2¹⁵ = 28241844263 is a prime.

It is a super-2 number, since 2×28241877031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28241877061) 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 3 ways as a sum of consecutive naturals, for example, 613953826 + ... + 613953871.

It is an arithmetic number, because the mean of its divisors is an integer number (7367446188).

Almost surely, 2^28241877031 is an apocalyptic number.

28241877031 is a deficient number, since it is larger than the sum of its proper divisors (1227907721).

28241877031 is a wasteful number, since it uses less digits than its factorization.

28241877031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1227907720.

The product of its (nonzero) digits is 150528, while the sum is 43.

The spelling of 28241877031 in words is "twenty-eight billion, two hundred forty-one million, eight hundred seventy-seven thousand, thirty-one".