32421421305 has 192 divisors, whose sum is σ = 75321792000. Its totient is φ = 12513263616.

The previous prime is 32421421301. The next prime is 32421421313. The reversal of 32421421305 is 50312412423.

32421421305 is a `hidden beast` number, since 324 + 2 + 14 + 21 + 305 = 666.

It is not a de Polignac number, because 32421421305 - 2² = 32421421301 is a prime.

It is a super-2 number, since 2×32421421305² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (32421421301) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 2249161 + ... + 2263529.

It is an arithmetic number, because the mean of its divisors is an integer number (392301000).

Almost surely, 2^32421421305 is an apocalyptic number.

32421421305 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

32421421305 is an abundant number, since it is smaller than the sum of its proper divisors (42900370695).

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

32421421305 is a wasteful number, since it uses less digits than its factorization.

32421421305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14448 (or 14445 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 32421421305 its reverse (50312412423), we get a palindrome (82733833728).

The spelling of 32421421305 in words is "thirty-two billion, four hundred twenty-one million, four hundred twenty-one thousand, three hundred five".