11641945937 has 2 divisors, whose sum is σ = 11641945938. Its totient is φ = 11641945936.

The previous prime is 11641945907. The next prime is 11641945951. The reversal of 11641945937 is 73954914611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11409657856 + 232288081 = 106816^2 + 15241^2 .

It is a cyclic number.

It is not a de Polignac number, because 11641945937 - 2⁸ = 11641945681 is a prime.

It is not a weakly prime, because it can be changed into another prime (11641945907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5820972968 + 5820972969.

It is an arithmetic number, because the mean of its divisors is an integer number (5820972969).

Almost surely, 2^11641945937 is an apocalyptic number.

It is an amenable number.

11641945937 is a deficient number, since it is larger than the sum of its proper divisors (1).

11641945937 is an equidigital number, since it uses as much as digits as its factorization.

11641945937 is an evil number, because the sum of its binary digits is even.

The product of its digits is 816480, while the sum is 50.

The spelling of 11641945937 in words is "eleven billion, six hundred forty-one million, nine hundred forty-five thousand, nine hundred thirty-seven".