73057378220 has 48 divisors (see below), whose sum is σ = 158417349888. Its totient is φ = 28271738880.

The previous prime is 73057378213. The next prime is 73057378243. The reversal of 73057378220 is 2287375037.

It is a happy number.

It is an unprimeable number.

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, 2276204 + ... + 2308076.

It is an arithmetic number, because the mean of its divisors is an integer number (3300361456).

Almost surely, 2^73057378220 is an apocalyptic number.

It is an amenable number.

73057378220 is an abundant number, since it is smaller than the sum of its proper divisors (85359971668).

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

73057378220 is a wasteful number, since it uses less digits than its factorization.

73057378220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35610 (or 35608 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 44.

The spelling of 73057378220 in words is "seventy-three billion, fifty-seven million, three hundred seventy-eight thousand, two hundred twenty".