421781540088 has 16 divisors (see below), whose sum is σ = 1054453850280. Its totient is φ = 140593846688.

The previous prime is 421781540077. The next prime is 421781540099. The reversal of 421781540088 is 880045187124.

It is an interprime number because it is at equal distance from previous prime (421781540077) and next prime (421781540099).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 8787115395 + ... + 8787115442.

Almost surely, 2^421781540088 is an apocalyptic number.

It is an amenable number.

421781540088 is an abundant number, since it is smaller than the sum of its proper divisors (632672310192).

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

421781540088 is a wasteful number, since it uses less digits than its factorization.

421781540088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17574230846 (or 17574230842 counting only the distinct ones).

The product of its (nonzero) digits is 573440, while the sum is 48.

The spelling of 421781540088 in words is "four hundred twenty-one billion, seven hundred eighty-one million, five hundred forty thousand, eighty-eight".