3211812642 has 8 divisors (see below), whose sum is σ = 6423625296. Its totient is φ = 1070604212.

The previous prime is 3211812619. The next prime is 3211812647. The reversal of 3211812642 is 2462181123.

It is a sphenic number, since it is the product of 3 distinct primes.

3211812642 is an admirable number.

It is a super-2 number, since 2×3211812642² = 20631480894622040328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3211812647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267651048 + ... + 267651059.

It is an arithmetic number, because the mean of its divisors is an integer number (802953162).

Almost surely, 2^3211812642 is an apocalyptic number.

3211812642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3211812642 is a wasteful number, since it uses less digits than its factorization.

3211812642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535302112.

The product of its digits is 4608, while the sum is 30.

The square root of 3211812642 is about 56672.8563070541. The cubic root of 3211812642 is about 1475.4236288893.

Adding to 3211812642 its reverse (2462181123), we get a palindrome (5673993765).

The spelling of 3211812642 in words is "three billion, two hundred eleven million, eight hundred twelve thousand, six hundred forty-two".