28872938951 has 2 divisors, whose sum is σ = 28872938952. Its totient is φ = 28872938950.

The previous prime is 28872938917. The next prime is 28872938953. The reversal of 28872938951 is 15983927882.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28872938951 - 2¹⁰ = 28872937927 is a prime.

Together with 28872938953, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28872938953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14436469475 + 14436469476.

It is an arithmetic number, because the mean of its divisors is an integer number (14436469476).

Almost surely, 2^28872938951 is an apocalyptic number.

28872938951 is a deficient number, since it is larger than the sum of its proper divisors (1).

28872938951 is an equidigital number, since it uses as much as digits as its factorization.

28872938951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17418240, while the sum is 62.

The spelling of 28872938951 in words is "twenty-eight billion, eight hundred seventy-two million, nine hundred thirty-eight thousand, nine hundred fifty-one".