420547764572 has 12 divisors (see below), whose sum is σ = 792570787176. Its totient is φ = 194098968240.

The previous prime is 420547764541. The next prime is 420547764577. The reversal of 420547764572 is 275467745024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420547764577) 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 3 ways as a sum of consecutive naturals, for example, 4043728454 + ... + 4043728557.

It is an arithmetic number, because the mean of its divisors is an integer number (66047565598).

Almost surely, 2^420547764572 is an apocalyptic number.

It is an amenable number.

420547764572 is a deficient number, since it is larger than the sum of its proper divisors (372023022604).

420547764572 is a wasteful number, since it uses less digits than its factorization.

420547764572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8087457028 (or 8087457026 counting only the distinct ones).

The product of its (nonzero) digits is 13171200, while the sum is 53.

The spelling of 420547764572 in words is "four hundred twenty billion, five hundred forty-seven million, seven hundred sixty-four thousand, five hundred seventy-two".