9853378553478 has 16 divisors (see below), whose sum is σ = 19706788362816. Its totient is φ = 3284454308520.

The previous prime is 9853378553477. The next prime is 9853378553509. The reversal of 9853378553478 is 8743558733589.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9853378553477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5654773 + ... + 7189103.

It is an arithmetic number, because the mean of its divisors is an integer number (1231674272676).

Almost surely, 2^{9853378553478} is an apocalyptic number.

9853378553478 is an abundant number, since it is smaller than the sum of its proper divisors (9853409809338).

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

9853378553478 is a wasteful number, since it uses less digits than its factorization.

9853378553478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2604659.

The product of its digits is 3048192000, while the sum is 75.

The spelling of 9853378553478 in words is "nine trillion, eight hundred fifty-three billion, three hundred seventy-eight million, five hundred fifty-three thousand, four hundred seventy-eight".