11625613609 has 2 divisors, whose sum is σ = 11625613610. Its totient is φ = 11625613608.

The previous prime is 11625613579. The next prime is 11625613663. The reversal of 11625613609 is 90631652611.

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., 10252170009 + 1373443600 = 101253^2 + 37060^2 .

It is a cyclic number.

It is not a de Polignac number, because 11625613609 - 2⁷ = 11625613481 is a prime.

It is not a weakly prime, because it can be changed into another prime (11625613679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5812806804 + 5812806805.

It is an arithmetic number, because the mean of its divisors is an integer number (5812806805).

Almost surely, 2^11625613609 is an apocalyptic number.

It is an amenable number.

11625613609 is a deficient number, since it is larger than the sum of its proper divisors (1).

11625613609 is an equidigital number, since it uses as much as digits as its factorization.

11625613609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 40.

The spelling of 11625613609 in words is "eleven billion, six hundred twenty-five million, six hundred thirteen thousand, six hundred nine".