421401200546 has 4 divisors (see below), whose sum is σ = 632101800822. Its totient is φ = 210700600272.

The previous prime is 421401200527. The next prime is 421401200551. The reversal of 421401200546 is 645002104124.

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., 375816815521 + 45584385025 = 613039^2 + 213505^2 .

It is a super-2 number, since 2×421401200546² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105350300135 + ... + 105350300138.

Almost surely, 2^421401200546 is an apocalyptic number.

421401200546 is a deficient number, since it is larger than the sum of its proper divisors (210700600276).

421401200546 is a wasteful number, since it uses less digits than its factorization.

421401200546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210700600275.

The product of its (nonzero) digits is 7680, while the sum is 29.

The spelling of 421401200546 in words is "four hundred twenty-one billion, four hundred one million, two hundred thousand, five hundred forty-six".