406129681282 has 32 divisors (see below), whose sum is σ = 659292565680. Its totient is φ = 186520561920.

The previous prime is 406129681261. The next prime is 406129681337. The reversal of 406129681282 is 282186921604.

It can be written as a sum of positive squares in 8 ways, for example, as 68744120481 + 337385560801 = 262191^2 + 580849^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11062068 + ... + 11098720.

Almost surely, 2^406129681282 is an apocalyptic number.

406129681282 is a deficient number, since it is larger than the sum of its proper divisors (253162884398).

406129681282 is a wasteful number, since it uses less digits than its factorization.

406129681282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38758.

The product of its (nonzero) digits is 663552, while the sum is 49.

The spelling of 406129681282 in words is "four hundred six billion, one hundred twenty-nine million, six hundred eighty-one thousand, two hundred eighty-two".