75375518820 has 96 divisors (see below), whose sum is σ = 241531707648. Its totient is φ = 17205115392.

The previous prime is 75375518797. The next prime is 75375518837. The reversal of 75375518820 is 2881557357.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 185442 + ... + 430278.

It is an arithmetic number, because the mean of its divisors is an integer number (2515955288).

Almost surely, 2^75375518820 is an apocalyptic number.

75375518820 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75375518820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120765853824).

75375518820 is an abundant number, since it is smaller than the sum of its proper divisors (166156188828).

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

75375518820 is a wasteful number, since it uses less digits than its factorization.

75375518820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245589 (or 245587 counting only the distinct ones).

The product of its (nonzero) digits is 2352000, while the sum is 51.

The spelling of 75375518820 in words is "seventy-five billion, three hundred seventy-five million, five hundred eighteen thousand, eight hundred twenty".