9878536743455 has 8 divisors (see below), whose sum is σ = 11897986691904. Its totient is φ = 7873667661600.

The previous prime is 9878536743431. The next prime is 9878536743457. The reversal of 9878536743455 is 5543476358789.

9878536743455 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 9878536743455 - 2³⁸ = 9603658836511 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 (9878536743457) 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, 3645215156 + ... + 3645217865.

It is an arithmetic number, because the mean of its divisors is an integer number (1487248336488).

Almost surely, 2^{9878536743455} is an apocalyptic number.

9878536743455 is a deficient number, since it is larger than the sum of its proper divisors (2019449948449).

9878536743455 is a wasteful number, since it uses less digits than its factorization.

9878536743455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7290433297.

The product of its digits is 3048192000, while the sum is 74.

The spelling of 9878536743455 in words is "nine trillion, eight hundred seventy-eight billion, five hundred thirty-six million, seven hundred forty-three thousand, four hundred fifty-five".