423001156534 has 16 divisors (see below), whose sum is σ = 694039444560. Its totient is φ = 191757771360.

The previous prime is 423001156517. The next prime is 423001156583. The reversal of 423001156534 is 435651100324.

It is a self number, because there is not a number n which added to its sum of digits gives 423001156534.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25765689 + ... + 25782100.

It is an arithmetic number, because the mean of its divisors is an integer number (43377465285).

Almost surely, 2^423001156534 is an apocalyptic number.

423001156534 is a deficient number, since it is larger than the sum of its proper divisors (271038288026).

423001156534 is a wasteful number, since it uses less digits than its factorization.

423001156534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51548175.

The product of its (nonzero) digits is 43200, while the sum is 34.

Adding to 423001156534 its reverse (435651100324), we get a palindrome (858652256858).

The spelling of 423001156534 in words is "four hundred twenty-three billion, one million, one hundred fifty-six thousand, five hundred thirty-four".