73732449494978 has 8 divisors (see below), whose sum is σ = 110601024996240. Its totient is φ = 36865441162900.

The previous prime is 73732449494933. The next prime is 73732449494993. The reversal of 73732449494978 is 87949494423737.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 391674668 + ... + 391862871.

It is an arithmetic number, because the mean of its divisors is an integer number (13825128124530).

Almost surely, 2^{73732449494978} is an apocalyptic number.

73732449494978 is a deficient number, since it is larger than the sum of its proper divisors (36868575501262).

73732449494978 is a wasteful number, since it uses less digits than its factorization.

73732449494978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783584592.

The product of its digits is 9217732608, while the sum is 80.

The spelling of 73732449494978 in words is "seventy-three trillion, seven hundred thirty-two billion, four hundred forty-nine million, four hundred ninety-four thousand, nine hundred seventy-eight".