429798678561 has 48 divisors (see below), whose sum is σ = 717441274368. Its totient is φ = 242859600000.

The previous prime is 429798678521. The next prime is 429798678571. The reversal of 429798678561 is 165876897924.

429798678561 is a `hidden beast` number, since 429 + 7 + 9 + 8 + 67 + 85 + 61 = 666.

It is not a de Polignac number, because 429798678561 - 2²² = 429794484257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 429798678561.

It is not an unprimeable number, because it can be changed into a prime (429798678511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5028936 + ... + 5113686.

It is an arithmetic number, because the mean of its divisors is an integer number (14946693216).

Almost surely, 2^429798678561 is an apocalyptic number.

It is an amenable number.

429798678561 is a deficient number, since it is larger than the sum of its proper divisors (287642595807).

429798678561 is a wasteful number, since it uses less digits than its factorization.

429798678561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85662 (or 85659 counting only the distinct ones).

The product of its digits is 365783040, while the sum is 72.

The spelling of 429798678561 in words is "four hundred twenty-nine billion, seven hundred ninety-eight million, six hundred seventy-eight thousand, five hundred sixty-one".