264605506242 has 32 divisors (see below), whose sum is σ = 659795549184. Its totient is φ = 68728702800.

The previous prime is 264605506241. The next prime is 264605506247. The reversal of 264605506242 is 242605506462.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 264605506194 and 264605506203.

It is not an unprimeable number, because it can be changed into a prime (264605506241) by changing a digit.

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, 286369134 + ... + 286370057.

It is an arithmetic number, because the mean of its divisors is an integer number (20618610912).

Almost surely, 2^264605506242 is an apocalyptic number.

264605506242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

264605506242 is an abundant number, since it is smaller than the sum of its proper divisors (395190042942).

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

264605506242 is a wasteful number, since it uses less digits than its factorization.

264605506242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572739214.

The product of its (nonzero) digits is 691200, while the sum is 42.

The spelling of 264605506242 in words is "two hundred sixty-four billion, six hundred five million, five hundred six thousand, two hundred forty-two".