9864526140 has 144 divisors (see below), whose sum is σ = 35700285600. Its totient is φ = 2254742784.

The previous prime is 9864526127. The next prime is 9864526141. The reversal of 9864526140 is 416254689.

9864526140 is a `hidden beast` number, since 9 + 86 + 4 + 526 + 1 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9864526141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 159945 + ... + 212864.

It is an arithmetic number, because the mean of its divisors is an integer number (247918650).

Almost surely, 2^9864526140 is an apocalyptic number.

9864526140 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

9864526140 is an abundant number, since it is smaller than the sum of its proper divisors (25835759460).

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

9864526140 is a wasteful number, since it uses less digits than its factorization.

9864526140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372841 (or 372826 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 9864526140 is about 99320.3208814792. The cubic root of 9864526140 is about 2144.6614361237.

The spelling of 9864526140 in words is "nine billion, eight hundred sixty-four million, five hundred twenty-six thousand, one hundred forty".