86357261647 has 2 divisors, whose sum is σ = 86357261648. Its totient is φ = 86357261646.

The previous prime is 86357261633. The next prime is 86357261671. The reversal of 86357261647 is 74616275368.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86357261647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86357261687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43178630823 + 43178630824.

It is an arithmetic number, because the mean of its divisors is an integer number (43178630824).

Almost surely, 2^86357261647 is an apocalyptic number.

86357261647 is a deficient number, since it is larger than the sum of its proper divisors (1).

86357261647 is an equidigital number, since it uses as much as digits as its factorization.

86357261647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10160640, while the sum is 55.

The spelling of 86357261647 in words is "eighty-six billion, three hundred fifty-seven million, two hundred sixty-one thousand, six hundred forty-seven".