420754787906211 has 128 divisors (see below), whose sum is σ = 724219591680000. Its totient is φ = 238748838249600.

The previous prime is 420754787906183. The next prime is 420754787906213. The reversal of 420754787906211 is 112609787457024.

420754787906211 is a `hidden beast` number, since 4 + 2 + 0 + 7 + 5 + 478 + 7 + 90 + 62 + 11 = 666.

It is not a de Polignac number, because 420754787906211 - 2⁵ = 420754787906179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420754787906213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 284646265 + ... + 286120613.

It is an arithmetic number, because the mean of its divisors is an integer number (5657965560000).

Almost surely, 2^{420754787906211} is an apocalyptic number.

420754787906211 is a deficient number, since it is larger than the sum of its proper divisors (303464803773789).

420754787906211 is a wasteful number, since it uses less digits than its factorization.

420754787906211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1474982 (or 1474976 counting only the distinct ones).

The product of its (nonzero) digits is 47416320, while the sum is 63.

The spelling of 420754787906211 in words is "four hundred twenty trillion, seven hundred fifty-four billion, seven hundred eighty-seven million, nine hundred six thousand, two hundred eleven".