73400016785 has 8 divisors (see below), whose sum is σ = 88445498856. Its totient is φ = 58476360960.

The previous prime is 73400016773. The next prime is 73400016791. The reversal of 73400016785 is 58761000437.

It can be written as a sum of positive squares in 4 ways, for example, as 922762129 + 72477254656 = 30377^2 + 269216^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-73400016785 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30455234 + ... + 30457643.

It is an arithmetic number, because the mean of its divisors is an integer number (11055687357).

Almost surely, 2^73400016785 is an apocalyptic number.

It is an amenable number.

73400016785 is a deficient number, since it is larger than the sum of its proper divisors (15045482071).

73400016785 is a wasteful number, since it uses less digits than its factorization.

73400016785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60913123.

The product of its (nonzero) digits is 141120, while the sum is 41.

The spelling of 73400016785 in words is "seventy-three billion, four hundred million, sixteen thousand, seven hundred eighty-five".