421807703547 has 16 divisors (see below), whose sum is σ = 566057423360. Its totient is φ = 279381971232.

The previous prime is 421807703521. The next prime is 421807703557. The reversal of 421807703547 is 745307708124.

It is not a de Polignac number, because 421807703547 - 2¹⁰ = 421807702523 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 421807703496 and 421807703505.

It is not an unprimeable number, because it can be changed into a prime (421807703557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4483998 + ... + 4577100.

It is an arithmetic number, because the mean of its divisors is an integer number (35378588960).

Almost surely, 2^421807703547 is an apocalyptic number.

421807703547 is a deficient number, since it is larger than the sum of its proper divisors (144249719813).

421807703547 is a wasteful number, since it uses less digits than its factorization.

421807703547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102882.

The product of its (nonzero) digits is 1317120, while the sum is 48.

The spelling of 421807703547 in words is "four hundred twenty-one billion, eight hundred seven million, seven hundred three thousand, five hundred forty-seven".