29690391427 has 2 divisors, whose sum is σ = 29690391428. Its totient is φ = 29690391426.

The previous prime is 29690391403. The next prime is 29690391433. The reversal of 29690391427 is 72419309692.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 29690391427 - 2³¹ = 27542907779 is a prime.

It is not a weakly prime, because it can be changed into another prime (29690391527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14845195713 + 14845195714.

It is an arithmetic number, because the mean of its divisors is an integer number (14845195714).

Almost surely, 2^29690391427 is an apocalyptic number.

29690391427 is a deficient number, since it is larger than the sum of its proper divisors (1).

29690391427 is an equidigital number, since it uses as much as digits as its factorization.

29690391427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1469664, while the sum is 52.

The spelling of 29690391427 in words is "twenty-nine billion, six hundred ninety million, three hundred ninety-one thousand, four hundred twenty-seven".