423927008077 has 4 divisors (see below), whose sum is σ = 425502945180. Its totient is φ = 422351070976.

The previous prime is 423927008069. The next prime is 423927008083. The reversal of 423927008077 is 770800729324.

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

It can be written as a sum of positive squares in 2 ways, for example, as 21642528996 + 402284479081 = 147114^2 + 634259^2 .

It is a cyclic number.

It is not a de Polignac number, because 423927008077 - 2³ = 423927008069 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 423927008077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423927002077) 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 in 3 ways as a sum of consecutive naturals, for example, 787968148 + ... + 787968685.

It is an arithmetic number, because the mean of its divisors is an integer number (106375736295).

Almost surely, 2^423927008077 is an apocalyptic number.

It is an amenable number.

423927008077 is a deficient number, since it is larger than the sum of its proper divisors (1575937103).

423927008077 is a wasteful number, since it uses less digits than its factorization.

423927008077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575937102.

The product of its (nonzero) digits is 1185408, while the sum is 49.

The spelling of 423927008077 in words is "four hundred twenty-three billion, nine hundred twenty-seven million, eight thousand, seventy-seven".