29697478453 has 2 divisors, whose sum is σ = 29697478454. Its totient is φ = 29697478452.

The previous prime is 29697478423. The next prime is 29697478501. The reversal of 29697478453 is 35487479692.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16324406289 + 13373072164 = 127767^2 + 115642^2 .

It is a cyclic number.

It is not a de Polignac number, because 29697478453 - 2⁹ = 29697477941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29697478423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14848739226 + 14848739227.

It is an arithmetic number, because the mean of its divisors is an integer number (14848739227).

Almost surely, 2^29697478453 is an apocalyptic number.

It is an amenable number.

29697478453 is a deficient number, since it is larger than the sum of its proper divisors (1).

29697478453 is an equidigital number, since it uses as much as digits as its factorization.

29697478453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 91445760, while the sum is 64.

The spelling of 29697478453 in words is "twenty-nine billion, six hundred ninety-seven million, four hundred seventy-eight thousand, four hundred fifty-three".