86381251654651 has 4 divisors (see below), whose sum is σ = 87564556471912. Its totient is φ = 85197946837392.

The previous prime is 86381251654637. The next prime is 86381251654697. The reversal of 86381251654651 is 15645615218368.

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

It is a cyclic number.

It is not a de Polignac number, because 86381251654651 - 2⁵ = 86381251654619 is a prime.

It is a super-2 number, since 2×86381251654651² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86381251654651.

It is not an unprimeable number, because it can be changed into a prime (86381251654751) 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, 591652408521 + ... + 591652408666.

It is an arithmetic number, because the mean of its divisors is an integer number (21891139117978).

Almost surely, 2^{86381251654651} is an apocalyptic number.

86381251654651 is a deficient number, since it is larger than the sum of its proper divisors (1183304817261).

86381251654651 is a wasteful number, since it uses less digits than its factorization.

86381251654651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1183304817260.

The product of its digits is 41472000, while the sum is 61.

The spelling of 86381251654651 in words is "eighty-six trillion, three hundred eighty-one billion, two hundred fifty-one million, six hundred fifty-four thousand, six hundred fifty-one".