28634890951 has 2 divisors, whose sum is σ = 28634890952. Its totient is φ = 28634890950.

The previous prime is 28634890919. The next prime is 28634890993. The reversal of 28634890951 is 15909843682.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28634890951 - 2⁵ = 28634890919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28634890892 and 28634890901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28634810951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14317445475 + 14317445476.

It is an arithmetic number, because the mean of its divisors is an integer number (14317445476).

Almost surely, 2^28634890951 is an apocalyptic number.

28634890951 is a deficient number, since it is larger than the sum of its proper divisors (1).

28634890951 is an equidigital number, since it uses as much as digits as its factorization.

28634890951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3732480, while the sum is 55.

The spelling of 28634890951 in words is "twenty-eight billion, six hundred thirty-four million, eight hundred ninety thousand, nine hundred fifty-one".