97286918677 has 4 divisors (see below), whose sum is σ = 104770527820. Its totient is φ = 89803309536.

The previous prime is 97286918671. The next prime is 97286918711. The reversal of 97286918677 is 77681968279.

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 4319249841 + 92967668836 = 65721^2 + 304906^2 .

It is a cyclic number.

It is not a de Polignac number, because 97286918677 - 2¹⁹ = 97286394389 is a prime.

It is a super-2 number, since 2×97286918677² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97286918671) 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, 3741804552 + ... + 3741804577.

It is an arithmetic number, because the mean of its divisors is an integer number (26192631955).

Almost surely, 2^97286918677 is an apocalyptic number.

It is an amenable number.

97286918677 is a deficient number, since it is larger than the sum of its proper divisors (7483609143).

97286918677 is a wasteful number, since it uses less digits than its factorization.

97286918677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7483609142.

The product of its digits is 128024064, while the sum is 70.

The spelling of 97286918677 in words is "ninety-seven billion, two hundred eighty-six million, nine hundred eighteen thousand, six hundred seventy-seven".