86697692549 has 8 divisors (see below), whose sum is σ = 93569283192. Its totient is φ = 79855035840.

The previous prime is 86697692527. The next prime is 86697692551. The reversal of 86697692549 is 94529679668.

It can be written as a sum of positive squares in 4 ways, for example, as 15723404449 + 70974288100 = 125393^2 + 266410^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86697692549 - 2¹⁶ = 86697627013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86697694549) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7227254 + ... + 7239239.

It is an arithmetic number, because the mean of its divisors is an integer number (11696160399).

Almost surely, 2^86697692549 is an apocalyptic number.

It is an amenable number.

86697692549 is a deficient number, since it is larger than the sum of its proper divisors (6871590643).

86697692549 is a wasteful number, since it uses less digits than its factorization.

86697692549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14466967.

The product of its digits is 352719360, while the sum is 71.

The spelling of 86697692549 in words is "eighty-six billion, six hundred ninety-seven million, six hundred ninety-two thousand, five hundred forty-nine".