9876145672 has 16 divisors (see below), whose sum is σ = 19018254060. Its totient is φ = 4804611264.

The previous prime is 9876145667. The next prime is 9876145687. The reversal of 9876145672 is 2765416789.

It can be written as a sum of positive squares in 2 ways, for example, as 8437157316 + 1438988356 = 91854^2 + 37934^2 .

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16682383 + ... + 16682974.

Almost surely, 2^9876145672 is an apocalyptic number.

It is an amenable number.

9876145672 is a deficient number, since it is larger than the sum of its proper divisors (9142108388).

9876145672 is a wasteful number, since it uses less digits than its factorization.

9876145672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33365400 (or 33365396 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 55.

The square root of 9876145672 is about 99378.7989060041. The cubic root of 9876145672 is about 2145.5031790091.

The spelling of 9876145672 in words is "nine billion, eight hundred seventy-six million, one hundred forty-five thousand, six hundred seventy-two".