1000631784937 has 2 divisors, whose sum is σ = 1000631784938. Its totient is φ = 1000631784936.

The previous prime is 1000631784913. The next prime is 1000631784941. The reversal of 1000631784937 is 7394871360001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 893726327641 + 106905457296 = 945371^2 + 326964^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000631784937 - 2¹¹ = 1000631782889 is a prime.

It is not a weakly prime, because it can be changed into another prime (1000631784967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500315892468 + 500315892469.

It is an arithmetic number, because the mean of its divisors is an integer number (500315892469).

Almost surely, 2^{1000631784937} is an apocalyptic number.

It is an amenable number.

1000631784937 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000631784937 is an equidigital number, since it uses as much as digits as its factorization.

1000631784937 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 762048, while the sum is 49.

The spelling of 1000631784937 in words is "one trillion, six hundred thirty-one million, seven hundred eighty-four thousand, nine hundred thirty-seven".