9842156461 has 4 divisors (see below), whose sum is σ = 9966740800. Its totient is φ = 9717572124.

The previous prime is 9842156413. The next prime is 9842156479. The reversal of 9842156461 is 1646512489.

It is a happy number.

9842156461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 9842156461 - 2⁹ = 9842155949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9842156411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62292051 + ... + 62292208.

It is an arithmetic number, because the mean of its divisors is an integer number (2491685200).

Almost surely, 2^9842156461 is an apocalyptic number.

It is an amenable number.

9842156461 is a deficient number, since it is larger than the sum of its proper divisors (124584339).

9842156461 is a wasteful number, since it uses less digits than its factorization.

9842156461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124584338.

The product of its digits is 414720, while the sum is 46.

The square root of 9842156461 is about 99207.6431581761. The cubic root of 9842156461 is about 2143.0390673319.

The spelling of 9842156461 in words is "nine billion, eight hundred forty-two million, one hundred fifty-six thousand, four hundred sixty-one".