421577382118 has 8 divisors (see below), whose sum is σ = 633522137112. Its totient is φ = 210403336416.

The previous prime is 421577382089. The next prime is 421577382151. The reversal of 421577382118 is 811283775124.

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

It is a super-2 number, since 2×421577382118² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192675955 + ... + 192678142.

It is an arithmetic number, because the mean of its divisors is an integer number (79190267139).

Almost surely, 2^421577382118 is an apocalyptic number.

421577382118 is a deficient number, since it is larger than the sum of its proper divisors (211944754994).

421577382118 is a wasteful number, since it uses less digits than its factorization.

421577382118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385354646.

The product of its digits is 752640, while the sum is 49.

The spelling of 421577382118 in words is "four hundred twenty-one billion, five hundred seventy-seven million, three hundred eighty-two thousand, one hundred eighteen".