427023912919 has 2 divisors, whose sum is σ = 427023912920. Its totient is φ = 427023912918.

The previous prime is 427023912911. The next prime is 427023912967. The reversal of 427023912919 is 919219320724.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 427023912919 - 2³ = 427023912911 is a prime.

It is a super-2 number, since 2×427023912919² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (427023912911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213511956459 + 213511956460.

It is an arithmetic number, because the mean of its divisors is an integer number (213511956460).

Almost surely, 2^427023912919 is an apocalyptic number.

427023912919 is a deficient number, since it is larger than the sum of its proper divisors (1).

427023912919 is an equidigital number, since it uses as much as digits as its factorization.

427023912919 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 427023912919 in words is "four hundred twenty-seven billion, twenty-three million, nine hundred twelve thousand, nine hundred nineteen".