264401243023236 has 48 divisors (see below), whose sum is σ = 673031008577088. Its totient is φ = 80120438473600.

The previous prime is 264401243023219. The next prime is 264401243023241. The reversal of 264401243023236 is 632320342104462.

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 15 ways as a sum of consecutive naturals, for example, 5127735 + ... + 23560478.

It is an arithmetic number, because the mean of its divisors is an integer number (14021479345356).

Almost surely, 2^{264401243023236} is an apocalyptic number.

It is an amenable number.

264401243023236 is an abundant number, since it is smaller than the sum of its proper divisors (408629765553852).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

264401243023236 is a wasteful number, since it uses less digits than its factorization.

264401243023236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28758052 (or 28758050 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 42.

Adding to 264401243023236 its reverse (632320342104462), we get a palindrome (896721585127698).

The spelling of 264401243023236 in words is "two hundred sixty-four trillion, four hundred one billion, two hundred forty-three million, twenty-three thousand, two hundred thirty-six".