6620846942 has 4 divisors (see below), whose sum is σ = 9931270416. Its totient is φ = 3310423470.

The previous prime is 6620846941. The next prime is 6620846957. The reversal of 6620846942 is 2496480266.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×6620846942² = 87671228458781502728, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6620846941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1655211734 + ... + 1655211737.

It is an arithmetic number, because the mean of its divisors is an integer number (2482817604).

Almost surely, 2^6620846942 is an apocalyptic number.

6620846942 is a deficient number, since it is larger than the sum of its proper divisors (3310423474).

6620846942 is a wasteful number, since it uses less digits than its factorization.

6620846942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3310423473.

The product of its (nonzero) digits is 995328, while the sum is 47.

The square root of 6620846942 is about 81368.5869485270. The cubic root of 6620846942 is about 1877.7503404184.

The spelling of 6620846942 in words is "six billion, six hundred twenty million, eight hundred forty-six thousand, nine hundred forty-two".