75120312480 has 48 divisors (see below), whose sum is σ = 236628985824. Its totient is φ = 20032083200.

The previous prime is 75120312461. The next prime is 75120312503. The reversal of 75120312480 is 8421302157.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×75120312480² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

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, 78249846 + ... + 78250805.

It is an arithmetic number, because the mean of its divisors is an integer number (4929770538).

Almost surely, 2^75120312480 is an apocalyptic number.

It is an amenable number.

75120312480 is an abundant number, since it is smaller than the sum of its proper divisors (161508673344).

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

75120312480 is a wasteful number, since it uses less digits than its factorization.

75120312480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156500669 (or 156500661 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The spelling of 75120312480 in words is "seventy-five billion, one hundred twenty million, three hundred twelve thousand, four hundred eighty".