420545550635 has 16 divisors (see below), whose sum is σ = 578124691200. Its totient is φ = 287685838176.

The previous prime is 420545550563. The next prime is 420545550697. The reversal of 420545550635 is 536055545024.

It is a cyclic number.

It is not a de Polignac number, because 420545550635 - 2⁸ = 420545550379 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14323745 + ... + 14353074.

It is an arithmetic number, because the mean of its divisors is an integer number (36132793200).

Almost surely, 2^420545550635 is an apocalyptic number.

420545550635 is a deficient number, since it is larger than the sum of its proper divisors (157579140565).

420545550635 is a wasteful number, since it uses less digits than its factorization.

420545550635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28677250.

The product of its (nonzero) digits is 1800000, while the sum is 44.

The spelling of 420545550635 in words is "four hundred twenty billion, five hundred forty-five million, five hundred fifty thousand, six hundred thirty-five".