420144779313 has 48 divisors (see below), whose sum is σ = 714871602432. Its totient is φ = 232820784000.

The previous prime is 420144779309. The next prime is 420144779323. The reversal of 420144779313 is 313977441024.

420144779313 is a `hidden beast` number, since 420 + 144 + 7 + 79 + 3 + 13 = 666.

It is not a de Polignac number, because 420144779313 - 2² = 420144779309 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (420144779323) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 497058 + ... + 1042763.

It is an arithmetic number, because the mean of its divisors is an integer number (14893158384).

Almost surely, 2^420144779313 is an apocalyptic number.

It is an amenable number.

420144779313 is a deficient number, since it is larger than the sum of its proper divisors (294726823119).

420144779313 is a wasteful number, since it uses less digits than its factorization.

420144779313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1539966 (or 1539963 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The spelling of 420144779313 in words is "four hundred twenty billion, one hundred forty-four million, seven hundred seventy-nine thousand, three hundred thirteen".