28429669297 has 2 divisors, whose sum is σ = 28429669298. Its totient is φ = 28429669296.

The previous prime is 28429669241. The next prime is 28429669327. The reversal of 28429669297 is 79296692482.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16775171361 + 11654497936 = 129519^2 + 107956^2 .

It is a cyclic number.

It is not a de Polignac number, because 28429669297 - 2²³ = 28421280689 is a prime.

It is not a weakly prime, because it can be changed into another prime (28429669997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14214834648 + 14214834649.

It is an arithmetic number, because the mean of its divisors is an integer number (14214834649).

Almost surely, 2^28429669297 is an apocalyptic number.

It is an amenable number.

28429669297 is a deficient number, since it is larger than the sum of its proper divisors (1).

28429669297 is an equidigital number, since it uses as much as digits as its factorization.

28429669297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47029248, while the sum is 64.

The spelling of 28429669297 in words is "twenty-eight billion, four hundred twenty-nine million, six hundred sixty-nine thousand, two hundred ninety-seven".