401028773706 has 36 divisors (see below), whose sum is σ = 955067153586. Its totient is φ = 121523870160.

The previous prime is 401028773599. The next prime is 401028773707. The reversal of 401028773706 is 607377820104.

It can be written as a sum of positive squares in only one way, i.e., 338210870481 + 62817903225 = 581559^2 + 250635^2 .

It is not an unprimeable number, because it can be changed into a prime (401028773707) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 92061361 + ... + 92065716.

Almost surely, 2^401028773706 is an apocalyptic number.

401028773706 is an abundant number, since it is smaller than the sum of its proper divisors (554038379880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

401028773706 is a wasteful number, since it uses less digits than its factorization.

401028773706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184127107 (or 184127093 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 45.

The spelling of 401028773706 in words is "four hundred one billion, twenty-eight million, seven hundred seventy-three thousand, seven hundred six".