11397137929 has 2 divisors, whose sum is σ = 11397137930. Its totient is φ = 11397137928.

The previous prime is 11397137923. The next prime is 11397137933. The reversal of 11397137929 is 92973179311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6835486329 + 4561651600 = 82677^2 + 67540^2 .

It is an emirp because it is prime and its reverse (92973179311) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11397137929 is a prime.

It is not a weakly prime, because it can be changed into another prime (11397137923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5698568964 + 5698568965.

It is an arithmetic number, because the mean of its divisors is an integer number (5698568965).

Almost surely, 2^11397137929 is an apocalyptic number.

It is an amenable number.

11397137929 is a deficient number, since it is larger than the sum of its proper divisors (1).

11397137929 is an equidigital number, since it uses as much as digits as its factorization.

11397137929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 642978, while the sum is 52.

The spelling of 11397137929 in words is "eleven billion, three hundred ninety-seven million, one hundred thirty-seven thousand, nine hundred twenty-nine".