428106081274 has 8 divisors (see below), whose sum is σ = 642727911060. Its totient is φ = 213863444256.

The previous prime is 428106081257. The next prime is 428106081287. The reversal of 428106081274 is 472180601824.

It can be written as a sum of positive squares in 2 ways, for example, as 426073424049 + 2032657225 = 652743^2 + 45085^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 428106081274.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94795369 + ... + 94799884.

Almost surely, 2^428106081274 is an apocalyptic number.

428106081274 is a deficient number, since it is larger than the sum of its proper divisors (214621829786).

428106081274 is a wasteful number, since it uses less digits than its factorization.

428106081274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189596384.

The product of its (nonzero) digits is 172032, while the sum is 43.

The spelling of 428106081274 in words is "four hundred twenty-eight billion, one hundred six million, eighty-one thousand, two hundred seventy-four".