6461440022 has 8 divisors (see below), whose sum is σ = 9713094816. Its totient is φ = 3223741752.

The previous prime is 6461439989. The next prime is 6461440031. The reversal of 6461440022 is 2200441646.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3487973 + ... + 3489824.

It is an arithmetic number, because the mean of its divisors is an integer number (1214136852).

Almost surely, 2^6461440022 is an apocalyptic number.

6461440022 is a deficient number, since it is larger than the sum of its proper divisors (3251654794).

6461440022 is a wasteful number, since it uses less digits than its factorization.

6461440022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6978262.

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 6461440022 is about 80383.0829341597. The cubic root of 6461440022 is about 1862.5578580708.

Adding to 6461440022 its reverse (2200441646), we get a palindrome (8661881668).

The spelling of 6461440022 in words is "six billion, four hundred sixty-one million, four hundred forty thousand, twenty-two".