420673325643 has 24 divisors (see below), whose sum is σ = 615453930000. Its totient is φ = 276847534080.

The previous prime is 420673325629. The next prime is 420673325713. The reversal of 420673325643 is 346523376024.

420673325643 is a `hidden beast` number, since 4 + 20 + 67 + 3 + 3 + 2 + 564 + 3 = 666.

It is not a de Polignac number, because 420673325643 - 2⁹ = 420673325131 is a prime.

It is a super-3 number, since 3×420673325643³ (a number of 36 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (420673325603) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 707563 + ... + 1158443.

It is an arithmetic number, because the mean of its divisors is an integer number (25643913750).

Almost surely, 2^420673325643 is an apocalyptic number.

420673325643 is a deficient number, since it is larger than the sum of its proper divisors (194780604357).

420673325643 is a wasteful number, since it uses less digits than its factorization.

420673325643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452219 (or 452216 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 45.

The spelling of 420673325643 in words is "four hundred twenty billion, six hundred seventy-three million, three hundred twenty-five thousand, six hundred forty-three".