427377345407 has 2 divisors, whose sum is σ = 427377345408. Its totient is φ = 427377345406.

The previous prime is 427377345403. The next prime is 427377345503. The reversal of 427377345407 is 704543773724.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 427377345407 - 2² = 427377345403 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (427377345403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213688672703 + 213688672704.

It is an arithmetic number, because the mean of its divisors is an integer number (213688672704).

Almost surely, 2^427377345407 is an apocalyptic number.

427377345407 is a deficient number, since it is larger than the sum of its proper divisors (1).

427377345407 is an equidigital number, since it uses as much as digits as its factorization.

427377345407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13829760, while the sum is 53.

The spelling of 427377345407 in words is "four hundred twenty-seven billion, three hundred seventy-seven million, three hundred forty-five thousand, four hundred seven".