73975407930 has 24 divisors (see below), whose sum is σ = 192336060852. Its totient is φ = 19726775424.

The previous prime is 73975407871. The next prime is 73975407931. The reversal of 73975407930 is 3970457937.

It is a happy number.

73975407930 is a `hidden beast` number, since 7 + 3 + 9 + 7 + 540 + 7 + 93 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 72361538001 + 1613869929 = 269001^2 + 40173^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (73975407931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 410974399 + ... + 410974578.

Almost surely, 2^73975407930 is an apocalyptic number.

73975407930 is an abundant number, since it is smaller than the sum of its proper divisors (118360652922).

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

73975407930 is a wasteful number, since it uses less digits than its factorization.

73975407930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821948990 (or 821948987 counting only the distinct ones).

The product of its (nonzero) digits is 5000940, while the sum is 54.

The spelling of 73975407930 in words is "seventy-three billion, nine hundred seventy-five million, four hundred seven thousand, nine hundred thirty".