73679040945 has 12 divisors (see below), whose sum is σ = 127710337716. Its totient is φ = 39295488480.

The previous prime is 73679040923. The next prime is 73679040989. The reversal of 73679040945 is 54904097637.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 42844032144 + 30835008801 = 206988^2 + 175599^2 .

It is not a de Polignac number, because 73679040945 - 2⁹ = 73679040433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 73679040891 and 73679040900.

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 11 ways as a sum of consecutive naturals, for example, 818655966 + ... + 818656055.

It is an arithmetic number, because the mean of its divisors is an integer number (10642528143).

Almost surely, 2^73679040945 is an apocalyptic number.

It is an amenable number.

73679040945 is a deficient number, since it is larger than the sum of its proper divisors (54031296771).

73679040945 is a wasteful number, since it uses less digits than its factorization.

73679040945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1637312032 (or 1637312029 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 54.

The spelling of 73679040945 in words is "seventy-three billion, six hundred seventy-nine million, forty thousand, nine hundred forty-five".