1950231318691 has 2 divisors, whose sum is σ = 1950231318692. Its totient is φ = 1950231318690.

The previous prime is 1950231318631. The next prime is 1950231318701. The reversal of 1950231318691 is 1968131320591.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1950231318691 - 2²⁵ = 1950197764259 is a prime.

It is not a weakly prime, because it can be changed into another prime (1950231318601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 975115659345 + 975115659346.

It is an arithmetic number, because the mean of its divisors is an integer number (975115659346).

Almost surely, 2^{1950231318691} is an apocalyptic number.

1950231318691 is a deficient number, since it is larger than the sum of its proper divisors (1).

1950231318691 is an equidigital number, since it uses as much as digits as its factorization.

1950231318691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 349920, while the sum is 49.

The spelling of 1950231318691 in words is "one trillion, nine hundred fifty billion, two hundred thirty-one million, three hundred eighteen thousand, six hundred ninety-one".