73501720406 has 8 divisors (see below), whose sum is σ = 111344190624. Its totient is φ = 36386990200.

The previous prime is 73501720399. The next prime is 73501720417. The reversal of 73501720406 is 60402710537.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 181934750 + ... + 181935153.

It is an arithmetic number, because the mean of its divisors is an integer number (13918023828).

Almost surely, 2^73501720406 is an apocalyptic number.

73501720406 is a deficient number, since it is larger than the sum of its proper divisors (37842470218).

73501720406 is a wasteful number, since it uses less digits than its factorization.

73501720406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363870006.

The product of its (nonzero) digits is 35280, while the sum is 35.

The spelling of 73501720406 in words is "seventy-three billion, five hundred one million, seven hundred twenty thousand, four hundred six".