29651640497 has 2 divisors, whose sum is σ = 29651640498. Its totient is φ = 29651640496.

The previous prime is 29651640467. The next prime is 29651640511. The reversal of 29651640497 is 79404615692.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23194071616 + 6457568881 = 152296^2 + 80359^2 .

It is a cyclic number.

It is not a de Polignac number, because 29651640497 - 2⁶ = 29651640433 is a prime.

It is not a weakly prime, because it can be changed into another prime (29651640467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14825820248 + 14825820249.

It is an arithmetic number, because the mean of its divisors is an integer number (14825820249).

Almost surely, 2^29651640497 is an apocalyptic number.

It is an amenable number.

29651640497 is a deficient number, since it is larger than the sum of its proper divisors (1).

29651640497 is an equidigital number, since it uses as much as digits as its factorization.

29651640497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3265920, while the sum is 53.

The spelling of 29651640497 in words is "twenty-nine billion, six hundred fifty-one million, six hundred forty thousand, four hundred ninety-seven".