75073002820 has 12 divisors (see below), whose sum is σ = 157653305964. Its totient is φ = 30029201120.

The previous prime is 75073002817. The next prime is 75073002859. The reversal of 75073002820 is 2820037057.

It can be written as a sum of positive squares in 2 ways, for example, as 35194510404 + 39878492416 = 187602^2 + 199696^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1876825051 + ... + 1876825090.

It is an arithmetic number, because the mean of its divisors is an integer number (13137775497).

Almost surely, 2^75073002820 is an apocalyptic number.

It is an amenable number.

75073002820 is an abundant number, since it is smaller than the sum of its proper divisors (82580303144).

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

75073002820 is a wasteful number, since it uses less digits than its factorization.

75073002820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3753650150 (or 3753650148 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 34.

Adding to 75073002820 its reverse (2820037057), we get a palindrome (77893039877).

The spelling of 75073002820 in words is "seventy-five billion, seventy-three million, two thousand, eight hundred twenty".