11637432769 has 2 divisors, whose sum is σ = 11637432770. Its totient is φ = 11637432768.

The previous prime is 11637432619. The next prime is 11637432787. The reversal of 11637432769 is 96723473611.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9262137600 + 2375295169 = 96240^2 + 48737^2 .

It is a cyclic number.

It is not a de Polignac number, because 11637432769 - 2¹⁵ = 11637400001 is a prime.

It is a super-2 number, since 2×11637432769² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11637402769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5818716384 + 5818716385.

It is an arithmetic number, because the mean of its divisors is an integer number (5818716385).

Almost surely, 2^11637432769 is an apocalyptic number.

It is an amenable number.

11637432769 is a deficient number, since it is larger than the sum of its proper divisors (1).

11637432769 is an equidigital number, since it uses as much as digits as its factorization.

11637432769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1143072, while the sum is 49.

The spelling of 11637432769 in words is "eleven billion, six hundred thirty-seven million, four hundred thirty-two thousand, seven hundred sixty-nine".