421293784463 has 16 divisors (see below), whose sum is σ = 462919225440. Its totient is φ = 381967228800.

The previous prime is 421293784459. The next prime is 421293784487. The reversal of 421293784463 is 364487392124.

It is a cyclic number.

It is not a de Polignac number, because 421293784463 - 2² = 421293784459 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421293781463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4869248 + ... + 4955013.

It is an arithmetic number, because the mean of its divisors is an integer number (28932451590).

Almost surely, 2^421293784463 is an apocalyptic number.

421293784463 is a deficient number, since it is larger than the sum of its proper divisors (41625440977).

421293784463 is a wasteful number, since it uses less digits than its factorization.

421293784463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9824378.

The product of its digits is 6967296, while the sum is 53.

The spelling of 421293784463 in words is "four hundred twenty-one billion, two hundred ninety-three million, seven hundred eighty-four thousand, four hundred sixty-three".