1146721635937 has 2 divisors, whose sum is σ = 1146721635938. Its totient is φ = 1146721635936.

The previous prime is 1146721635889. The next prime is 1146721635967. The reversal of 1146721635937 is 7395361276411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 886490039296 + 260231596641 = 941536^2 + 510129^2 .

It is a cyclic number.

It is not a de Polignac number, because 1146721635937 - 2³¹ = 1144574152289 is a prime.

It is not a weakly prime, because it can be changed into another prime (1146721635967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 573360817968 + 573360817969.

It is an arithmetic number, because the mean of its divisors is an integer number (573360817969).

Almost surely, 2^{1146721635937} is an apocalyptic number.

It is an amenable number.

1146721635937 is a deficient number, since it is larger than the sum of its proper divisors (1).

1146721635937 is an equidigital number, since it uses as much as digits as its factorization.

1146721635937 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5715360, while the sum is 55.

The spelling of 1146721635937 in words is "one trillion, one hundred forty-six billion, seven hundred twenty-one million, six hundred thirty-five thousand, nine hundred thirty-seven".