428106081937 has 8 divisors (see below), whose sum is σ = 433001686016. Its totient is φ = 423234301392.

The previous prime is 428106081919. The next prime is 428106081943. The reversal of 428106081937 is 739180601824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 428106081937 - 2³⁵ = 393746343569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428106081037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5919738 + ... + 5991619.

It is an arithmetic number, because the mean of its divisors is an integer number (54125210752).

Almost surely, 2^428106081937 is an apocalyptic number.

It is an amenable number.

428106081937 is a deficient number, since it is larger than the sum of its proper divisors (4895604079).

428106081937 is a wasteful number, since it uses less digits than its factorization.

428106081937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11911767.

The product of its (nonzero) digits is 580608, while the sum is 49.

The spelling of 428106081937 in words is "four hundred twenty-eight billion, one hundred six million, eighty-one thousand, nine hundred thirty-seven".