9861520032001 has 8 divisors (see below), whose sum is σ = 10758069105408. Its totient is φ = 8964978834000.

The previous prime is 9861520031981. The next prime is 9861520032017. The reversal of 9861520032001 is 1002300251689.

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

It is a cyclic number.

It is not a de Polignac number, because 9861520032001 - 2¹⁹ = 9861519507713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9861520032061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 821296 + ... + 4516366.

It is an arithmetic number, because the mean of its divisors is an integer number (1344758638176).

Almost surely, 2^{9861520032001} is an apocalyptic number.

It is an amenable number.

9861520032001 is a deficient number, since it is larger than the sum of its proper divisors (896549073407).

9861520032001 is a wasteful number, since it uses less digits than its factorization.

9861520032001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3937703.

The product of its (nonzero) digits is 25920, while the sum is 37.

The spelling of 9861520032001 in words is "nine trillion, eight hundred sixty-one billion, five hundred twenty million, thirty-two thousand, one".