73579487812 has 6 divisors (see below), whose sum is σ = 128764103678. Its totient is φ = 36789743904.

The previous prime is 73579487809. The next prime is 73579487869. The reversal of 73579487812 is 21878497537.

It can be written as a sum of positive squares in only one way, i.e., 53538555456 + 20040932356 = 231384^2 + 141566^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9197435973 + ... + 9197435980.

Almost surely, 2^73579487812 is an apocalyptic number.

It is an amenable number.

73579487812 is a deficient number, since it is larger than the sum of its proper divisors (55184615866).

73579487812 is a wasteful number, since it uses less digits than its factorization.

73579487812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18394871957 (or 18394871955 counting only the distinct ones).

The product of its digits is 23708160, while the sum is 61.

The spelling of 73579487812 in words is "seventy-three billion, five hundred seventy-nine million, four hundred eighty-seven thousand, eight hundred twelve".