423144404454155 has 8 divisors (see below), whose sum is σ = 516379612215600. Its totient is φ = 332777972316256.

The previous prime is 423144404454131. The next prime is 423144404454197. The reversal of 423144404454155 is 551454404441324.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423144404454155 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 717193905560 + ... + 717193906149.

It is an arithmetic number, because the mean of its divisors is an integer number (64547451526950).

Almost surely, 2^{423144404454155} is an apocalyptic number.

423144404454155 is a deficient number, since it is larger than the sum of its proper divisors (93235207761445).

423144404454155 is a wasteful number, since it uses less digits than its factorization.

423144404454155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1434387811773.

The product of its (nonzero) digits is 12288000, while the sum is 50.

Adding to 423144404454155 its reverse (551454404441324), we get a palindrome (974598808895479).

The spelling of 423144404454155 in words is "four hundred twenty-three trillion, one hundred forty-four billion, four hundred four million, four hundred fifty-four thousand, one hundred fifty-five".