264639936462 has 128 divisors (see below), whose sum is σ = 651517820928. Its totient is φ = 70658649600.

The previous prime is 264639936443. The next prime is 264639936469.

264639936462 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×264639936462² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 264639936396 and 264639936405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264639936469) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1103787 + ... + 1321977.

It is an arithmetic number, because the mean of its divisors is an integer number (5089982976).

Almost surely, 2^264639936462 is an apocalyptic number.

264639936462 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 264639936462, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (325758910464).

264639936462 is an abundant number, since it is smaller than the sum of its proper divisors (386877884466).

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

264639936462 is a wasteful number, since it uses less digits than its factorization.

264639936462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218294.

The product of its digits is 60466176, while the sum is 60.

The spelling of 264639936462 in words is "two hundred sixty-four billion, six hundred thirty-nine million, nine hundred thirty-six thousand, four hundred sixty-two".