9854040251040 has 96 divisors (see below), whose sum is σ = 31041090138240. Its totient is φ = 2627670979584.

The previous prime is 9854040250933. The next prime is 9854040251131. The reversal of 9854040251040 is 401520404589.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 9854040250983 and 9854040251001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18241141 + ... + 18773579.

It is an arithmetic number, because the mean of its divisors is an integer number (323344688940).

Almost surely, 2^{9854040251040} is an apocalyptic number.

It is an amenable number.

9854040251040 is an abundant number, since it is smaller than the sum of its proper divisors (21187049887200).

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

9854040251040 is a wasteful number, since it uses less digits than its factorization.

9854040251040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571014 (or 571006 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 42.

The spelling of 9854040251040 in words is "nine trillion, eight hundred fifty-four billion, forty million, two hundred fifty-one thousand, forty".