9801194631 has 32 divisors (see below), whose sum is σ = 14496468480. Its totient is φ = 5862384000.

The previous prime is 9801194621. The next prime is 9801194651. The reversal of 9801194631 is 1364911089.

It is a de Polignac number, because none of the positive numbers 2^k-9801194631 is a prime.

It is a super-2 number, since 2×9801194631² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9801194621) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 95401 + ... + 169421.

It is an arithmetic number, because the mean of its divisors is an integer number (453014640).

Almost surely, 2^9801194631 is an apocalyptic number.

9801194631 is a deficient number, since it is larger than the sum of its proper divisors (4695273849).

9801194631 is a wasteful number, since it uses less digits than its factorization.

9801194631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74167.

The product of its (nonzero) digits is 46656, while the sum is 42.

The square root of 9801194631 is about 99000.9829799684. The cubic root of 9801194631 is about 2140.0619127137.

The spelling of 9801194631 in words is "nine billion, eight hundred one million, one hundred ninety-four thousand, six hundred thirty-one".