9402138302191 has 8 divisors (see below), whose sum is σ = 9422975946384. Its totient is φ = 9381302574720.

The previous prime is 9402138302153. The next prime is 9402138302209. The reversal of 9402138302191 is 1912038312049.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9402138302191 - 2¹¹ = 9402138300143 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 (9402138372191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9575751 + ... + 10511863.

It is an arithmetic number, because the mean of its divisors is an integer number (1177871993298).

Almost surely, 2^{9402138302191} is an apocalyptic number.

9402138302191 is a deficient number, since it is larger than the sum of its proper divisors (20837644193).

9402138302191 is a wasteful number, since it uses less digits than its factorization.

9402138302191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958361.

The product of its (nonzero) digits is 93312, while the sum is 43.

The spelling of 9402138302191 in words is "nine trillion, four hundred two billion, one hundred thirty-eight million, three hundred two thousand, one hundred ninety-one".