428671620351 has 48 divisors (see below), whose sum is σ = 732436723200. Its totient is φ = 239047972416.

The previous prime is 428671620347. The next prime is 428671620437. The reversal of 428671620351 is 153026176824.

428671620351 is a `hidden beast` number, since 4 + 286 + 7 + 16 + 2 + 0 + 351 = 666.

It is not a de Polignac number, because 428671620351 - 2² = 428671620347 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 428671620297 and 428671620306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428671620301) 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, 4140931 + ... + 4243188.

It is an arithmetic number, because the mean of its divisors is an integer number (15259098400).

Almost surely, 2^428671620351 is an apocalyptic number.

428671620351 is a deficient number, since it is larger than the sum of its proper divisors (303765102849).

428671620351 is a wasteful number, since it uses less digits than its factorization.

428671620351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8384180 (or 8384177 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 428671620351 in words is "four hundred twenty-eight billion, six hundred seventy-one million, six hundred twenty thousand, three hundred fifty-one".