6421408948 has 12 divisors (see below), whose sum is σ = 11828911360. Its totient is φ = 3041719992.

The previous prime is 6421408933. The next prime is 6421408979. The reversal of 6421408948 is 8498041246.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 6421408898 and 6421408907.

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, 42246036 + ... + 42246187.

Almost surely, 2^6421408948 is an apocalyptic number.

It is an amenable number.

6421408948 is a deficient number, since it is larger than the sum of its proper divisors (5407502412).

6421408948 is a wasteful number, since it uses less digits than its factorization.

6421408948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84492246 (or 84492244 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 46.

The square root of 6421408948 is about 80133.6942116111. The cubic root of 6421408948 is about 1858.7034695966.

The spelling of 6421408948 in words is "six billion, four hundred twenty-one million, four hundred eight thousand, nine hundred forty-eight".