11472042397 has 2 divisors, whose sum is σ = 11472042398. Its totient is φ = 11472042396.

The previous prime is 11472042349. The next prime is 11472042467. The reversal of 11472042397 is 79324027411.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6122436516 + 5349605881 = 78246^2 + 73141^2 .

It is a cyclic number.

It is not a de Polignac number, because 11472042397 - 2¹⁵ = 11472009629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11472042797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5736021198 + 5736021199.

It is an arithmetic number, because the mean of its divisors is an integer number (5736021199).

Almost surely, 2^11472042397 is an apocalyptic number.

It is an amenable number.

11472042397 is a deficient number, since it is larger than the sum of its proper divisors (1).

11472042397 is an equidigital number, since it uses as much as digits as its factorization.

11472042397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 40.

The spelling of 11472042397 in words is "eleven billion, four hundred seventy-two million, forty-two thousand, three hundred ninety-seven".