975319557540 has 24 divisors (see below), whose sum is σ = 2730894761280. Its totient is φ = 260085215328.

The previous prime is 975319557497. The next prime is 975319557557. The reversal of 975319557540 is 45755913579.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (60), and also a Moran number because the ratio is a prime number: 16255325959 = 975319557540 / (9 + 7 + 5 + 3 + 1 + 9 + 5 + 5 + 7 + 5 + 4 + 0).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8127662920 + ... + 8127663039.

It is an arithmetic number, because the mean of its divisors is an integer number (113787281720).

Almost surely, 2^975319557540 is an apocalyptic number.

It is an amenable number.

975319557540 is an abundant number, since it is smaller than the sum of its proper divisors (1755575203740).

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

975319557540 is a wasteful number, since it uses less digits than its factorization.

975319557540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16255325971 (or 16255325969 counting only the distinct ones).

The product of its (nonzero) digits is 29767500, while the sum is 60.

The spelling of 975319557540 in words is "nine hundred seventy-five billion, three hundred nineteen million, five hundred fifty-seven thousand, five hundred forty".