6416421534 has 64 divisors (see below), whose sum is σ = 14394912000. Its totient is φ = 2118454560.

The previous prime is 6416421499. The next prime is 6416421541. The reversal of 6416421534 is 4351246146.

6416421534 is a `hidden beast` number, since 6 + 4 + 1 + 642 + 1 + 5 + 3 + 4 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4645524 + ... + 4646904.

It is an arithmetic number, because the mean of its divisors is an integer number (224920500).

Almost surely, 2^6416421534 is an apocalyptic number.

6416421534 is an abundant number, since it is smaller than the sum of its proper divisors (7978490466).

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

6416421534 is a wasteful number, since it uses less digits than its factorization.

6416421534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2150 (or 2144 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 6416421534 is about 80102.5688352128. The cubic root of 6416421534 is about 1858.2221357332. Note that the first 3 decimals are identical.

The spelling of 6416421534 in words is "six billion, four hundred sixteen million, four hundred twenty-one thousand, five hundred thirty-four".