333487343872 has 72 divisors (see below), whose sum is σ = 684082392056. Its totient is φ = 162137604096.

The previous prime is 333487343821. The next prime is 333487343879. The reversal of 333487343872 is 278343784333.

It can be written as a sum of positive squares in 4 ways, for example, as 21390817536 + 312096526336 = 146256^2 + 558656^2 .

It is a super-2 number, since 2×333487343872² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (333487343879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16821838 + ... + 16841650.

Almost surely, 2^333487343872 is an apocalyptic number.

333487343872 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 333487343872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (342041196028).

333487343872 is an abundant number, since it is smaller than the sum of its proper divisors (350595048184).

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

333487343872 is a wasteful number, since it uses less digits than its factorization.

333487343872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21643 (or 21629 counting only the distinct ones).

The product of its digits is 24385536, while the sum is 55.

The spelling of 333487343872 in words is "three hundred thirty-three billion, four hundred eighty-seven million, three hundred forty-three thousand, eight hundred seventy-two".