421854015936 has 56 divisors (see below), whose sum is σ = 1174900449280. Its totient is φ = 133217056512.

The previous prime is 421854015901. The next prime is 421854015937. The reversal of 421854015936 is 639510458124.

It is a super-2 number, since 2×421854015936² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421854015937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57816256 + ... + 57823551.

Almost surely, 2^421854015936 is an apocalyptic number.

It is an amenable number.

421854015936 is an abundant number, since it is smaller than the sum of its proper divisors (753046433344).

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

421854015936 is a wasteful number, since it uses less digits than its factorization.

421854015936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115639841 (or 115639831 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 48.

The spelling of 421854015936 in words is "four hundred twenty-one billion, eight hundred fifty-four million, fifteen thousand, nine hundred thirty-six".