73703106506 has 4 divisors (see below), whose sum is σ = 110554659762. Its totient is φ = 36851553252.

The previous prime is 73703106497. The next prime is 73703106517. The reversal of 73703106506 is 60560130737.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 70521582481 + 3181524025 = 265559^2 + 56405^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 73703106506.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18425776625 + ... + 18425776628.

Almost surely, 2^73703106506 is an apocalyptic number.

73703106506 is a deficient number, since it is larger than the sum of its proper divisors (36851553256).

73703106506 is a wasteful number, since it uses less digits than its factorization.

73703106506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36851553255.

The product of its (nonzero) digits is 79380, while the sum is 38.

The spelling of 73703106506 in words is "seventy-three billion, seven hundred three million, one hundred six thousand, five hundred six".