86653751909 has 4 divisors (see below), whose sum is σ = 87874227360. Its totient is φ = 85433276460.

The previous prime is 86653751879. The next prime is 86653751939. The reversal of 86653751909 is 90915735668.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (86653751879) and next prime (86653751939).

It is a cyclic number.

It is not a de Polignac number, because 86653751909 - 2¹² = 86653747813 is a prime.

It is a super-2 number, since 2×86653751909² (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 (86653751939) 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 3 ways as a sum of consecutive naturals, for example, 610237619 + ... + 610237760.

It is an arithmetic number, because the mean of its divisors is an integer number (21968556840).

Almost surely, 2^86653751909 is an apocalyptic number.

It is an amenable number.

86653751909 is a deficient number, since it is larger than the sum of its proper divisors (1220475451).

86653751909 is a wasteful number, since it uses less digits than its factorization.

86653751909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220475450.

The product of its (nonzero) digits is 12247200, while the sum is 59.

The spelling of 86653751909 in words is "eighty-six billion, six hundred fifty-three million, seven hundred fifty-one thousand, nine hundred nine".