73108773081 has 6 divisors (see below), whose sum is σ = 105601561130. Its totient is φ = 48739182048.

The previous prime is 73108773079. The next prime is 73108773091. The reversal of 73108773081 is 18037780137.

It can be written as a sum of positive squares in only one way, i.e., 73107507456 + 1265625 = 270384^2 + 1125^2 .

It is not a de Polignac number, because 73108773081 - 2¹ = 73108773079 is a prime.

It is a super-2 number, since 2×73108773081² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73108773011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4061598496 + ... + 4061598513.

Almost surely, 2^73108773081 is an apocalyptic number.

It is an amenable number.

73108773081 is a deficient number, since it is larger than the sum of its proper divisors (32492788049).

73108773081 is a wasteful number, since it uses less digits than its factorization.

73108773081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8123197015 (or 8123197012 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 45.

The spelling of 73108773081 in words is "seventy-three billion, one hundred eight million, seven hundred seventy-three thousand, eighty-one".