424243331145 has 12 divisors (see below), whose sum is σ = 735355107396. Its totient is φ = 226263109920.

The previous prime is 424243331137. The next prime is 424243331209. The reversal of 424243331145 is 541133342424.

424243331145 is a `hidden beast` number, since 4 + 242 + 43 + 331 + 1 + 45 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 101351179449 + 322892151696 = 318357^2 + 568236^2 .

It is not a de Polignac number, because 424243331145 - 2³ = 424243331137 is a prime.

It is a super-2 number, since 2×424243331145² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4713814746 + ... + 4713814835.

It is an arithmetic number, because the mean of its divisors is an integer number (61279592283).

Almost surely, 2^424243331145 is an apocalyptic number.

424243331145 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

424243331145 is a deficient number, since it is larger than the sum of its proper divisors (311111776251).

424243331145 is a wasteful number, since it uses less digits than its factorization.

424243331145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9427629592 (or 9427629589 counting only the distinct ones).

The product of its digits is 138240, while the sum is 36.

Adding to 424243331145 its reverse (541133342424), we get a palindrome (965376673569).

The spelling of 424243331145 in words is "four hundred twenty-four billion, two hundred forty-three million, three hundred thirty-one thousand, one hundred forty-five".