421445543962 has 4 divisors (see below), whose sum is σ = 632168315946. Its totient is φ = 210722771980.

The previous prime is 421445543951. The next prime is 421445543963. The reversal of 421445543962 is 269345544124.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 332664786441 + 88780757521 = 576771^2 + 297961^2 .

It is a super-3 number, since 3×421445543962³ (a number of 36 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (421445543963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105361385989 + ... + 105361385992.

Almost surely, 2^421445543962 is an apocalyptic number.

421445543962 is a deficient number, since it is larger than the sum of its proper divisors (210722771984).

421445543962 is a wasteful number, since it uses less digits than its factorization.

421445543962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210722771983.

The product of its digits is 4147200, while the sum is 49.

The spelling of 421445543962 in words is "four hundred twenty-one billion, four hundred forty-five million, five hundred forty-three thousand, nine hundred sixty-two".