73706220520 has 32 divisors (see below), whose sum is σ = 166272030720. Its totient is φ = 29405504320.

The previous prime is 73706220491. The next prime is 73706220551. The reversal of 73706220520 is 2502260737.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2390236 + ... + 2420875.

It is an arithmetic number, because the mean of its divisors is an integer number (5196000960).

Almost surely, 2^73706220520 is an apocalyptic number.

It is an amenable number.

73706220520 is an abundant number, since it is smaller than the sum of its proper divisors (92565810200).

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

73706220520 is a wasteful number, since it uses less digits than its factorization.

73706220520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4811505 (or 4811501 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 34.

The spelling of 73706220520 in words is "seventy-three billion, seven hundred six million, two hundred twenty thousand, five hundred twenty".