421670273832 has 24 divisors (see below), whose sum is σ = 1142023658490. Its totient is φ = 140556757920.

The previous prime is 421670273831. The next prime is 421670273839. The reversal of 421670273832 is 238372076124.

It can be written as a sum of positive squares in only one way, i.e., 418435621956 + 3234651876 = 646866^2 + 56874^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-3 number, since 3×421670273832³ (a number of 36 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (421670273831) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2928265719 + ... + 2928265862.

Almost surely, 2^421670273832 is an apocalyptic number.

It is an amenable number.

421670273832 is an abundant number, since it is smaller than the sum of its proper divisors (720353384658).

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

421670273832 is a wasteful number, since it uses less digits than its factorization.

421670273832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5856531593 (or 5856531586 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 45.

The spelling of 421670273832 in words is "four hundred twenty-one billion, six hundred seventy million, two hundred seventy-three thousand, eight hundred thirty-two".