73575657808 has 20 divisors (see below), whose sum is σ = 143814370068. Its totient is φ = 36462272000.

The previous prime is 73575657751. The next prime is 73575657871. The reversal of 73575657808 is 80875657537.

It can be written as a sum of positive squares in 2 ways, for example, as 4097024064 + 69478633744 = 64008^2 + 263588^2 .

It is a super-3 number, since 3×73575657808³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

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, 20345443 + ... + 20349058.

Almost surely, 2^73575657808 is an apocalyptic number.

It is an amenable number.

73575657808 is a deficient number, since it is larger than the sum of its proper divisors (70238712260).

73575657808 is a wasteful number, since it uses less digits than its factorization.

73575657808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40694622 (or 40694616 counting only the distinct ones).

The product of its (nonzero) digits is 49392000, while the sum is 61.

The spelling of 73575657808 in words is "seventy-three billion, five hundred seventy-five million, six hundred fifty-seven thousand, eight hundred eight".