1914131640959 has 4 divisors (see below), whose sum is σ = 1940352622416. Its totient is φ = 1887910659504.

The previous prime is 1914131640937. The next prime is 1914131640979. The reversal of 1914131640959 is 9590461314191.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1914131640959 - 2⁸ = 1914131640703 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1914131640959.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1914131640979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13110490619 + ... + 13110490764.

It is an arithmetic number, because the mean of its divisors is an integer number (485088155604).

Almost surely, 2^{1914131640959} is an apocalyptic number.

1914131640959 is a deficient number, since it is larger than the sum of its proper divisors (26220981457).

1914131640959 is an equidigital number, since it uses as much as digits as its factorization.

1914131640959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26220981456.

The product of its (nonzero) digits is 1049760, while the sum is 53.

The spelling of 1914131640959 in words is "one trillion, nine hundred fourteen billion, one hundred thirty-one million, six hundred forty thousand, nine hundred fifty-nine".