985673000401 has 4 divisors (see below), whose sum is σ = 985675060132. Its totient is φ = 985670940672.

The previous prime is 985673000399. The next prime is 985673000407. The reversal of 985673000401 is 104000376589.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 624453970176 + 361219030225 = 790224^2 + 601015^2 .

It is a cyclic number.

It is not a de Polignac number, because 985673000401 - 2¹ = 985673000399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (985673000407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104281 + ... + 1407913.

It is an arithmetic number, because the mean of its divisors is an integer number (246418765033).

Almost surely, 2^985673000401 is an apocalyptic number.

985673000401 is the 573200-th hex number.

It is an amenable number.

985673000401 is a deficient number, since it is larger than the sum of its proper divisors (2059731).

985673000401 is a wasteful number, since it uses less digits than its factorization.

985673000401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2059730.

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 985673000401 in words is "nine hundred eighty-five billion, six hundred seventy-three million, four hundred one", and thus it is an aban number.