73707407040 has 56 divisors (see below), whose sum is σ = 234021020400. Its totient is φ = 19655308288.

The previous prime is 73707406943. The next prime is 73707407129. The reversal of 73707407040 is 4070470737.

It is a self number, because there is not a number n which added to its sum of digits gives 73707407040.

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, 38388315 + ... + 38390234.

Almost surely, 2^73707407040 is an apocalyptic number.

It is an amenable number.

73707407040 is an abundant number, since it is smaller than the sum of its proper divisors (160313613360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73707407040 is a wasteful number, since it uses less digits than its factorization.

73707407040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76778569 (or 76778559 counting only the distinct ones).

The product of its (nonzero) digits is 115248, while the sum is 39.

Adding to 73707407040 its reverse (4070470737), we get a palindrome (77777877777).

The spelling of 73707407040 in words is "seventy-three billion, seven hundred seven million, four hundred seven thousand, forty".