421567381742 has 32 divisors (see below), whose sum is σ = 698521096224. Its totient is φ = 189574156800.

The previous prime is 421567381733. The next prime is 421567381787. The reversal of 421567381742 is 247183765124.

It is a super-3 number, since 3×421567381742³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 551393 + ... + 1071059.

It is an arithmetic number, because the mean of its divisors is an integer number (21828784257).

Almost surely, 2^421567381742 is an apocalyptic number.

421567381742 is a deficient number, since it is larger than the sum of its proper divisors (276953714482).

421567381742 is a wasteful number, since it uses less digits than its factorization.

421567381742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520484.

The product of its digits is 2257920, while the sum is 50.

The spelling of 421567381742 in words is "four hundred twenty-one billion, five hundred sixty-seven million, three hundred eighty-one thousand, seven hundred forty-two".