421580514971 has 18 divisors (see below), whose sum is σ = 535011842988. Its totient is φ = 328492551240.

The previous prime is 421580514911. The next prime is 421580515003. The reversal of 421580514971 is 179415085124.

It is not a de Polignac number, because 421580514971 - 2¹⁴ = 421580498587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (421580514911) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 15060230 + ... + 15088196.

It is an arithmetic number, because the mean of its divisors is an integer number (29722880166).

Almost surely, 2^421580514971 is an apocalyptic number.

421580514971 is a deficient number, since it is larger than the sum of its proper divisors (113431328017).

421580514971 is an frugal number, since it uses more digits than its factorization.

421580514971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55959 (or 27985 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 47.

The spelling of 421580514971 in words is "four hundred twenty-one billion, five hundred eighty million, five hundred fourteen thousand, nine hundred seventy-one".