1914131640937 has 2 divisors, whose sum is σ = 1914131640938. Its totient is φ = 1914131640936.

The previous prime is 1914131640931. The next prime is 1914131640979. The reversal of 1914131640937 is 7390461314191.

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., 1905230850601 + 8900790336 = 1380301^2 + 94344^2 .

It is a cyclic number.

It is not a de Polignac number, because 1914131640937 - 2⁷ = 1914131640809 is a prime.

It is not a weakly prime, because it can be changed into another prime (1914131640931) 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, 957065820468 + 957065820469.

It is an arithmetic number, because the mean of its divisors is an integer number (957065820469).

Almost surely, 2^{1914131640937} is an apocalyptic number.

It is an amenable number.

1914131640937 is a deficient number, since it is larger than the sum of its proper divisors (1).

1914131640937 is an equidigital number, since it uses as much as digits as its factorization.

1914131640937 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 489888, while the sum is 49.

The spelling of 1914131640937 in words is "one trillion, nine hundred fourteen billion, one hundred thirty-one million, six hundred forty thousand, nine hundred thirty-seven".