264444044046 has 64 divisors (see below), whose sum is σ = 651816281088. Its totient is φ = 69649509888.

The previous prime is 264444044021. The next prime is 264444044047. The reversal of 264444044046 is 640440444462.

It is a happy number.

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 = 264444043989 and 264444044007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264444044047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79750 + ... + 731606.

It is an arithmetic number, because the mean of its divisors is an integer number (10184629392).

Almost surely, 2^264444044046 is an apocalyptic number.

264444044046 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 264444044046, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (325908140544).

264444044046 is an abundant number, since it is smaller than the sum of its proper divisors (387372237042).

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

264444044046 is a wasteful number, since it uses less digits than its factorization.

264444044046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652625.

The product of its (nonzero) digits is 1179648, while the sum is 42.

The spelling of 264444044046 in words is "two hundred sixty-four billion, four hundred forty-four million, forty-four thousand, forty-six".