421527471247 has 8 divisors (see below), whose sum is σ = 445340836800. Its totient is φ = 398332634784.

The previous prime is 421527471181. The next prime is 421527471271. The reversal of 421527471247 is 742174725124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 421527471247 - 2²³ = 421519082639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 421527471197 and 421527471206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421527471647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154630872 + ... + 154633597.

It is an arithmetic number, because the mean of its divisors is an integer number (55667604600).

Almost surely, 2^421527471247 is an apocalyptic number.

421527471247 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

421527471247 is a deficient number, since it is larger than the sum of its proper divisors (23813365553).

421527471247 is a wasteful number, since it uses less digits than its factorization.

421527471247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309264545.

The product of its digits is 878080, while the sum is 46.

The spelling of 421527471247 in words is "four hundred twenty-one billion, five hundred twenty-seven million, four hundred seventy-one thousand, two hundred forty-seven".