73909779446 has 8 divisors (see below), whose sum is σ = 110905272264. Its totient is φ = 36941355360.

The previous prime is 73909779431. The next prime is 73909779487. The reversal of 73909779446 is 64497790937.

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 (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6760355 + ... + 6771278.

It is an arithmetic number, because the mean of its divisors is an integer number (13863159033).

Almost surely, 2^73909779446 is an apocalyptic number.

73909779446 is a deficient number, since it is larger than the sum of its proper divisors (36995492818).

73909779446 is a wasteful number, since it uses less digits than its factorization.

73909779446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13534366.

The product of its (nonzero) digits is 72013536, while the sum is 65.

The spelling of 73909779446 in words is "seventy-three billion, nine hundred nine million, seven hundred seventy-nine thousand, four hundred forty-six".