86255863764621 has 8 divisors (see below), whose sum is σ = 115008366971520. Its totient is φ = 57503634867072.

The previous prime is 86255863764571. The next prime is 86255863764671. The reversal of 86255863764621 is 12646736855268.

It is an interprime number because it is at equal distance from previous prime (86255863764571) and next prime (86255863764671).

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

It is not a de Polignac number, because 86255863764621 - 2⁶ = 86255863764557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86255863764671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67842501 + ... + 69102218.

It is an arithmetic number, because the mean of its divisors is an integer number (14376045871440).

Almost surely, 2^{86255863764621} is an apocalyptic number.

It is an amenable number.

86255863764621 is a deficient number, since it is larger than the sum of its proper divisors (28752503206899).

86255863764621 is a wasteful number, since it uses less digits than its factorization.

86255863764621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137154675.

The product of its digits is 696729600, while the sum is 69.

The spelling of 86255863764621 in words is "eighty-six trillion, two hundred fifty-five billion, eight hundred sixty-three million, seven hundred sixty-four thousand, six hundred twenty-one".