424278238669 has 16 divisors (see below), whose sum is σ = 439303772160. Its totient is φ = 409493145600.

The previous prime is 424278238663. The next prime is 424278238673. The reversal of 424278238669 is 966832872424.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 424278238669 - 2³ = 424278238661 is a prime.

It is a super-2 number, since 2×424278238669² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424278238661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6092404 + ... + 6161650.

It is an arithmetic number, because the mean of its divisors is an integer number (27456485760).

Almost surely, 2^424278238669 is an apocalyptic number.

It is an amenable number.

424278238669 is a deficient number, since it is larger than the sum of its proper divisors (15025533491).

424278238669 is a wasteful number, since it uses less digits than its factorization.

424278238669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70980.

The product of its digits is 55738368, while the sum is 61.

The spelling of 424278238669 in words is "four hundred twenty-four billion, two hundred seventy-eight million, two hundred thirty-eight thousand, six hundred sixty-nine".