9509457156342 has 256 divisors, whose sum is σ = 24165717811200. Its totient is φ = 2450193500160.

The previous prime is 9509457156271. The next prime is 9509457156389. The reversal of 9509457156342 is 2436517549059.

It is a happy number.

9509457156342 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 195325959 + ... + 195374637.

It is an arithmetic number, because the mean of its divisors is an integer number (94397335200).

Almost surely, 2^{9509457156342} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9509457156342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12082858905600).

9509457156342 is an abundant number, since it is smaller than the sum of its proper divisors (14656260654858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9509457156342 is a wasteful number, since it uses less digits than its factorization.

9509457156342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49011.

The product of its (nonzero) digits is 40824000, while the sum is 60.

The spelling of 9509457156342 in words is "nine trillion, five hundred nine billion, four hundred fifty-seven million, one hundred fifty-six thousand, three hundred forty-two".