6421412455 has 4 divisors (see below), whose sum is σ = 7705694952. Its totient is φ = 5137129960.

The previous prime is 6421412453. The next prime is 6421412483. The reversal of 6421412455 is 5542141246.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5542141246 = 2 ⋅2771070623.

It is not a de Polignac number, because 6421412455 - 2¹ = 6421412453 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6421412455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6421412453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 642141241 + ... + 642141250.

It is an arithmetic number, because the mean of its divisors is an integer number (1926423738).

Almost surely, 2^6421412455 is an apocalyptic number.

6421412455 is a deficient number, since it is larger than the sum of its proper divisors (1284282497).

6421412455 is a wasteful number, since it uses less digits than its factorization.

6421412455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284282496.

The product of its digits is 38400, while the sum is 34.

The square root of 6421412455 is about 80133.7160937891. The cubic root of 6421412455 is about 1858.7038079684.

The spelling of 6421412455 in words is "six billion, four hundred twenty-one million, four hundred twelve thousand, four hundred fifty-five".