6421039954 has 8 divisors (see below), whose sum is σ = 11007497088. Its totient is φ = 2751874260.

The previous prime is 6421039931. The next prime is 6421039957. The reversal of 6421039954 is 4599301246.

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

It is a self number, because there is not a number n which added to its sum of digits gives 6421039954.

It is not an unprimeable number, because it can be changed into a prime (6421039957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229322842 + ... + 229322869.

It is an arithmetic number, because the mean of its divisors is an integer number (1375937136).

Almost surely, 2^6421039954 is an apocalyptic number.

6421039954 is a deficient number, since it is larger than the sum of its proper divisors (4586457134).

6421039954 is a wasteful number, since it uses less digits than its factorization.

6421039954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458645720.

The product of its (nonzero) digits is 233280, while the sum is 43.

The square root of 6421039954 is about 80131.3918136956. The cubic root of 6421039954 is about 1858.6678666331.

The spelling of 6421039954 in words is "six billion, four hundred twenty-one million, thirty-nine thousand, nine hundred fifty-four".