428611143650 has 12 divisors (see below), whose sum is σ = 797216727282. Its totient is φ = 171444457440.

The previous prime is 428611143647. The next prime is 428611143671. The reversal of 428611143650 is 56341116824.

It can be written as a sum of positive squares in 3 ways, for example, as 261324417601 + 167286726049 = 511199^2 + 409007^2 .

It is a junction number, because it is equal to n+sod(n) for n = 428611143598 and 428611143607.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4286111387 + ... + 4286111486.

Almost surely, 2^428611143650 is an apocalyptic number.

428611143650 is a deficient number, since it is larger than the sum of its proper divisors (368605583632).

428611143650 is a wasteful number, since it uses less digits than its factorization.

428611143650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8572222885 (or 8572222880 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 41.

The spelling of 428611143650 in words is "four hundred twenty-eight billion, six hundred eleven million, one hundred forty-three thousand, six hundred fifty".