421354065772 has 24 divisors (see below), whose sum is σ = 738633835520. Its totient is φ = 210316130640.

The previous prime is 421354065749. The next prime is 421354065773. The reversal of 421354065772 is 277560453124.

It is not an unprimeable number, because it can be changed into a prime (421354065773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5699179 + ... + 5772637.

Almost surely, 2^421354065772 is an apocalyptic number.

It is an amenable number.

421354065772 is a deficient number, since it is larger than the sum of its proper divisors (317279769748).

421354065772 is a wasteful number, since it uses less digits than its factorization.

421354065772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75901 (or 75899 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 46.

The spelling of 421354065772 in words is "four hundred twenty-one billion, three hundred fifty-four million, sixty-five thousand, seven hundred seventy-two".