420929466867 has 144 divisors (see below), whose sum is σ = 780634702848. Its totient is φ = 216520698240.

The previous prime is 420929466863. The next prime is 420929466901. The reversal of 420929466867 is 768664929024.

420929466867 is a `hidden beast` number, since 4 + 2 + 0 + 92 + 9 + 466 + 86 + 7 = 666.

It is not a de Polignac number, because 420929466867 - 2² = 420929466863 is a prime.

It is a super-4 number, since 4×420929466867⁴ (a number of 48 digits) contains 4444 as substring.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (420929466863) 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 143 ways as a sum of consecutive naturals, for example, 244299468 + ... + 244301190.

Almost surely, 2^420929466867 is an apocalyptic number.

420929466867 is a deficient number, since it is larger than the sum of its proper divisors (359705235981).

420929466867 is a wasteful number, since it uses less digits than its factorization.

420929466867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2790 (or 2780 counting only the distinct ones).

The product of its (nonzero) digits is 62705664, while the sum is 63.

The spelling of 420929466867 in words is "four hundred twenty billion, nine hundred twenty-nine million, four hundred sixty-six thousand, eight hundred sixty-seven".