9978613454 has 32 divisors (see below), whose sum is σ = 16333954560. Its totient is φ = 4553523072.

The previous prime is 9978613429. The next prime is 9978613481. The reversal of 9978613454 is 4543168799.

9978613454 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 9978613454.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178667 + ... + 227769.

It is an arithmetic number, because the mean of its divisors is an integer number (510436080).

Almost surely, 2^9978613454 is an apocalyptic number.

9978613454 is a deficient number, since it is larger than the sum of its proper divisors (6355341106).

9978613454 is a wasteful number, since it uses less digits than its factorization.

9978613454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49304.

The product of its digits is 6531840, while the sum is 56.

The square root of 9978613454 is about 99893.0100357377. The cubic root of 9978613454 is about 2152.8977299483.

The spelling of 9978613454 in words is "nine billion, nine hundred seventy-eight million, six hundred thirteen thousand, four hundred fifty-four".