421288607769 has 16 divisors (see below), whose sum is σ = 575038464000. Its totient is φ = 274204755216.

The previous prime is 421288607713. The next prime is 421288607771. The reversal of 421288607769 is 967706882124.

It is a happy number.

It is not a de Polignac number, because 421288607769 - 2³² = 416993640473 is a prime.

It is a super-2 number, since 2×421288607769² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (421288607969) 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, 440469 + ... + 1018130.

It is an arithmetic number, because the mean of its divisors is an integer number (35939904000).

Almost surely, 2^421288607769 is an apocalyptic number.

It is an amenable number.

421288607769 is a deficient number, since it is larger than the sum of its proper divisors (153749856231).

421288607769 is a wasteful number, since it uses less digits than its factorization.

421288607769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1460884.

The product of its (nonzero) digits is 16257024, while the sum is 60.

The spelling of 421288607769 in words is "four hundred twenty-one billion, two hundred eighty-eight million, six hundred seven thousand, seven hundred sixty-nine".