9973545898 has 8 divisors (see below), whose sum is σ = 15183607392. Its totient is φ = 4912343436.

The previous prime is 9973545851. The next prime is 9973545899. The reversal of 9973545898 is 8985453799.

9973545898 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 a Harshad number since it is a multiple of its sum of digits (67).

It is not an unprimeable number, because it can be changed into a prime (9973545899) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 37214590 + ... + 37214857.

It is an arithmetic number, because the mean of its divisors is an integer number (1897950924).

Almost surely, 2^9973545898 is an apocalyptic number.

9973545898 is the 53382-nd centered heptagonal number.

9973545898 is a deficient number, since it is larger than the sum of its proper divisors (5210061494).

9973545898 is a wasteful number, since it uses less digits than its factorization.

9973545898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74429516.

The product of its digits is 97977600, while the sum is 67.

The square root of 9973545898 is about 99867.6418966624. The cubic root of 9973545898 is about 2152.5332244914.

The spelling of 9973545898 in words is "nine billion, nine hundred seventy-three million, five hundred forty-five thousand, eight hundred ninety-eight".