985091010001 has 4 divisors (see below), whose sum is σ = 1125818297152. Its totient is φ = 844363722852.

The previous prime is 985091009971. The next prime is 985091010019. The reversal of 985091010001 is 100010190589.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 985091010001 - 2⁷ = 985091009873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (985091013001) 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, 70363643565 + ... + 70363643578.

It is an arithmetic number, because the mean of its divisors is an integer number (281454574288).

Almost surely, 2^985091010001 is an apocalyptic number.

It is an amenable number.

985091010001 is a deficient number, since it is larger than the sum of its proper divisors (140727287151).

985091010001 is a wasteful number, since it uses less digits than its factorization.

985091010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140727287150.

The product of its (nonzero) digits is 3240, while the sum is 34.

The spelling of 985091010001 in words is "nine hundred eighty-five billion, ninety-one million, ten thousand, one".