421734005154 has 48 divisors (see below), whose sum is σ = 1139229524160. Its totient is φ = 109541299680.

The previous prime is 421734005137. The next prime is 421734005221. The reversal of 421734005154 is 451500437124.

421734005154 is a `hidden beast` number, since 4 + 217 + 340 + 0 + 51 + 54 = 666.

It is a super-2 number, since 2×421734005154² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 152139309 + ... + 152142080.

It is an arithmetic number, because the mean of its divisors is an integer number (23733948420).

Almost surely, 2^421734005154 is an apocalyptic number.

421734005154 is an abundant number, since it is smaller than the sum of its proper divisors (717495519006).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

421734005154 is a wasteful number, since it uses less digits than its factorization.

421734005154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304281415 (or 304281412 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The spelling of 421734005154 in words is "four hundred twenty-one billion, seven hundred thirty-four million, five thousand, one hundred fifty-four".