421559747089 has 8 divisors (see below), whose sum is σ = 468632175872. Its totient is φ = 376579426320.

The previous prime is 421559747083. The next prime is 421559747113. The reversal of 421559747089 is 980747955124.

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

It is a cyclic number.

It is not a de Polignac number, because 421559747089 - 2⁵ = 421559747057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421559747083) 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, 523026579 + ... + 523027384.

It is an arithmetic number, because the mean of its divisors is an integer number (58579021984).

Almost surely, 2^421559747089 is an apocalyptic number.

It is an amenable number.

421559747089 is a deficient number, since it is larger than the sum of its proper divisors (47072428783).

421559747089 is a wasteful number, since it uses less digits than its factorization.

421559747089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046054007.

The product of its (nonzero) digits is 25401600, while the sum is 61.

The spelling of 421559747089 in words is "four hundred twenty-one billion, five hundred fifty-nine million, seven hundred forty-seven thousand, eighty-nine".