75840545508 has 48 divisors (see below), whose sum is σ = 217798492800. Its totient is φ = 20001901824.

The previous prime is 75840545507. The next prime is 75840545509. The reversal of 75840545508 is 80554504857.

It is an interprime number because it is at equal distance from previous prime (75840545507) and next prime (75840545509).

It is a super-3 number, since 3×75840545508³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (75840545507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34724433 + ... + 34726616.

It is an arithmetic number, because the mean of its divisors is an integer number (4537468600).

Almost surely, 2^75840545508 is an apocalyptic number.

75840545508 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

75840545508 is an abundant number, since it is smaller than the sum of its proper divisors (141957947292).

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

75840545508 is a wasteful number, since it uses less digits than its factorization.

75840545508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69451076 (or 69451074 counting only the distinct ones).

The product of its (nonzero) digits is 4480000, while the sum is 51.

The spelling of 75840545508 in words is "seventy-five billion, eight hundred forty million, five hundred forty-five thousand, five hundred eight".