421846872772 has 48 divisors (see below), whose sum is σ = 839973758400. Its totient is φ = 183765456000.

The previous prime is 421846872743. The next prime is 421846872773. The reversal of 421846872772 is 277278648124.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (421846872773) 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, 527854 + ... + 1059397.

It is an arithmetic number, because the mean of its divisors is an integer number (17499453300).

Almost surely, 2^421846872772 is an apocalyptic number.

It is an amenable number.

421846872772 is a deficient number, since it is larger than the sum of its proper divisors (418126885628).

421846872772 is a wasteful number, since it uses less digits than its factorization.

421846872772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1587556 (or 1587554 counting only the distinct ones).

The product of its digits is 16859136, while the sum is 58.

The spelling of 421846872772 in words is "four hundred twenty-one billion, eight hundred forty-six million, eight hundred seventy-two thousand, seven hundred seventy-two".