421336188472 has 32 divisors (see below), whose sum is σ = 793558684800. Its totient is φ = 209722546144.

The previous prime is 421336188467. The next prime is 421336188479. The reversal of 421336188472 is 274881633124.

It is a super-2 number, since 2×421336188472² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421336188479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1560903 + ... + 1810825.

It is an arithmetic number, because the mean of its divisors is an integer number (24798708900).

Almost surely, 2^421336188472 is an apocalyptic number.

It is an amenable number.

421336188472 is a deficient number, since it is larger than the sum of its proper divisors (372222496328).

421336188472 is a wasteful number, since it uses less digits than its factorization.

421336188472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250875 (or 250871 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 49.

The spelling of 421336188472 in words is "four hundred twenty-one billion, three hundred thirty-six million, one hundred eighty-eight thousand, four hundred seventy-two".