73486286977 has 4 divisors (see below), whose sum is σ = 73523087316. Its totient is φ = 73449486640.

The previous prime is 73486286963. The next prime is 73486286981. The reversal of 73486286977 is 77968268437.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1181228161 + 72305058816 = 34369^2 + 268896^2 .

It is a cyclic number.

It is not a de Polignac number, because 73486286977 - 2¹⁹ = 73485762689 is a prime.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73486286917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18397174 + ... + 18401167.

It is an arithmetic number, because the mean of its divisors is an integer number (18380771829).

Almost surely, 2^73486286977 is an apocalyptic number.

It is an amenable number.

73486286977 is a deficient number, since it is larger than the sum of its proper divisors (36800339).

73486286977 is a wasteful number, since it uses less digits than its factorization.

73486286977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36800338.

The product of its digits is 170698752, while the sum is 67.

The spelling of 73486286977 in words is "seventy-three billion, four hundred eighty-six million, two hundred eighty-six thousand, nine hundred seventy-seven".