1914459791 has 2 divisors, whose sum is σ = 1914459792. Its totient is φ = 1914459790.

The previous prime is 1914459787. The next prime is 1914459797. The reversal of 1914459791 is 1979544191.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1914459791 - 2² = 1914459787 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1914459797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 957229895 + 957229896.

It is an arithmetic number, because the mean of its divisors is an integer number (957229896).

Almost surely, 2^1914459791 is an apocalyptic number.

1914459791 is a deficient number, since it is larger than the sum of its proper divisors (1).

1914459791 is an equidigital number, since it uses as much as digits as its factorization.

1914459791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 408240, while the sum is 50.

The square root of 1914459791 is about 43754.5402329861. The cubic root of 1914459791 is about 1241.6963841923.

The spelling of 1914459791 in words is "one billion, nine hundred fourteen million, four hundred fifty-nine thousand, seven hundred ninety-one".