421031554360 has 64 divisors (see below), whose sum is σ = 965109880800. Its totient is φ = 165260422656.

The previous prime is 421031554337. The next prime is 421031554379. The reversal of 421031554360 is 63455130124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1154374 + ... + 1474666.

Almost surely, 2^421031554360 is an apocalyptic number.

421031554360 is a gapful number since it is divisible by the number (40) 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 421031554360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (482554940400).

421031554360 is an abundant number, since it is smaller than the sum of its proper divisors (544078326440).

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

421031554360 is a wasteful number, since it uses less digits than its factorization.

421031554360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320920 (or 320916 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

Adding to 421031554360 its reverse (63455130124), we get a palindrome (484486684484).

The spelling of 421031554360 in words is "four hundred twenty-one billion, thirty-one million, five hundred fifty-four thousand, three hundred sixty".