73695943656 has 48 divisors (see below), whose sum is σ = 200274443460. Its totient is φ = 24481466880.

The previous prime is 73695943613. The next prime is 73695943661. The reversal of 73695943656 is 65634959637.

73695943656 is a `hidden beast` number, since 7 + 3 + 6 + 9 + 594 + 36 + 5 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 56485127556 + 17210816100 = 237666^2 + 131190^2 .

It is a super-2 number, since 2×73695943656² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 73695943593 and 73695943602.

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, 1725585 + ... + 1767776.

Almost surely, 2^73695943656 is an apocalyptic number.

It is an amenable number.

73695943656 is an abundant number, since it is smaller than the sum of its proper divisors (126578499804).

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

73695943656 is a wasteful number, since it uses less digits than its factorization.

73695943656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3493666 (or 3493659 counting only the distinct ones).

The product of its digits is 110224800, while the sum is 63.

The spelling of 73695943656 in words is "seventy-three billion, six hundred ninety-five million, nine hundred forty-three thousand, six hundred fifty-six".