9975570432987 has 8 divisors (see below), whose sum is σ = 13302902086720. Its totient is φ = 6649309533960.

The previous prime is 9975570432973. The next prime is 9975570433043. The reversal of 9975570432987 is 7892340755799.

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

It is not a de Polignac number, because 9975570432987 - 2⁷ = 9975570432859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9975570432587) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267666937 + ... + 267704202.

It is an arithmetic number, because the mean of its divisors is an integer number (1662862760840).

Almost surely, 2^{9975570432987} is an apocalyptic number.

9975570432987 is a deficient number, since it is larger than the sum of its proper divisors (3327331653733).

9975570432987 is a wasteful number, since it uses less digits than its factorization.

9975570432987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535377353.

The product of its (nonzero) digits is 1200225600, while the sum is 75.

The spelling of 9975570432987 in words is "nine trillion, nine hundred seventy-five billion, five hundred seventy million, four hundred thirty-two thousand, nine hundred eighty-seven".