421944550692 has 96 divisors (see below), whose sum is σ = 1133854267392. Its totient is φ = 119629257216.

The previous prime is 421944550691. The next prime is 421944550693. The reversal of 421944550692 is 296055449124.

It is an interprime number because it is at equal distance from previous prime (421944550691) and next prime (421944550693).

It is not an unprimeable number, because it can be changed into a prime (421944550691) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8293243 + ... + 8343965.

It is an arithmetic number, because the mean of its divisors is an integer number (11810981952).

Almost surely, 2^421944550692 is an apocalyptic number.

421944550692 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421944550692, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (566927133696).

421944550692 is an abundant number, since it is smaller than the sum of its proper divisors (711909716700).

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

421944550692 is a wasteful number, since it uses less digits than its factorization.

421944550692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51497 (or 51495 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 51.

The spelling of 421944550692 in words is "four hundred twenty-one billion, nine hundred forty-four million, five hundred fifty thousand, six hundred ninety-two".