75147943220 has 24 divisors (see below), whose sum is σ = 180355064064. Its totient is φ = 25765009056.

The previous prime is 75147943219. The next prime is 75147943229. The reversal of 75147943220 is 2234974157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75147943229) 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, 268385372 + ... + 268385651.

It is an arithmetic number, because the mean of its divisors is an integer number (7514794336).

Almost surely, 2^75147943220 is an apocalyptic number.

75147943220 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

75147943220 is an abundant number, since it is smaller than the sum of its proper divisors (105207120844).

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

75147943220 is a wasteful number, since it uses less digits than its factorization.

75147943220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536771039 (or 536771037 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 44.

The spelling of 75147943220 in words is "seventy-five billion, one hundred forty-seven million, nine hundred forty-three thousand, two hundred twenty".