4351223412045 has 48 divisors (see below), whose sum is σ = 7770772696752. Its totient is φ = 2251340282880.

The previous prime is 4351223412043. The next prime is 4351223412091. The reversal of 4351223412045 is 5402143221534.

It is a happy number.

4351223412045 is a `hidden beast` number, since 4 + 351 + 223 + 41 + 2 + 0 + 45 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 207938736009 + 4143284676036 = 456003^2 + 2035506^2 .

It is not a de Polignac number, because 4351223412045 - 2¹ = 4351223412043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4351223412043) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10656774 + ... + 11057543.

It is an arithmetic number, because the mean of its divisors is an integer number (161891097849).

Almost surely, 2^{4351223412045} is an apocalyptic number.

4351223412045 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4351223412045 is a deficient number, since it is larger than the sum of its proper divisors (3419549284707).

4351223412045 is a wasteful number, since it uses less digits than its factorization.

4351223412045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21714462 (or 21714459 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 4351223412045 its reverse (5402143221534), we get a palindrome (9753366633579).

The spelling of 4351223412045 in words is "four trillion, three hundred fifty-one billion, two hundred twenty-three million, four hundred twelve thousand, forty-five".