73075807530 has 64 divisors (see below), whose sum is σ = 212584176000. Its totient is φ = 17715346560.

The previous prime is 73075807457. The next prime is 73075807543. The reversal of 73075807530 is 3570857037.

73075807530 is a `hidden beast` number, since 7 + 30 + 7 + 5 + 80 + 7 + 530 = 666.

It is a super-3 number, since 3×73075807530³ (a number of 34 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 12299355 + ... + 12305294.

It is an arithmetic number, because the mean of its divisors is an integer number (3321627750).

Almost surely, 2^73075807530 is an apocalyptic number.

73075807530 is an abundant number, since it is smaller than the sum of its proper divisors (139508368470).

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

73075807530 is a wasteful number, since it uses less digits than its factorization.

73075807530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24604676 (or 24604670 counting only the distinct ones).

The product of its (nonzero) digits is 617400, while the sum is 45.

The spelling of 73075807530 in words is "seventy-three billion, seventy-five million, eight hundred seven thousand, five hundred thirty".