28914434651 has 2 divisors, whose sum is σ = 28914434652. Its totient is φ = 28914434650.

The previous prime is 28914434629. The next prime is 28914434677. The reversal of 28914434651 is 15643441982.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28914434651 - 2²² = 28910240347 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28914434596 and 28914434605.

It is not a weakly prime, because it can be changed into another prime (28914434611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14457217325 + 14457217326.

It is an arithmetic number, because the mean of its divisors is an integer number (14457217326).

Almost surely, 2^28914434651 is an apocalyptic number.

28914434651 is a deficient number, since it is larger than the sum of its proper divisors (1).

28914434651 is an equidigital number, since it uses as much as digits as its factorization.

28914434651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 829440, while the sum is 47.

The spelling of 28914434651 in words is "twenty-eight billion, nine hundred fourteen million, four hundred thirty-four thousand, six hundred fifty-one".