86845254758449 has 6 divisors (see below), whose sum is σ = 95458007296610. Its totient is φ = 78950231598480.

The previous prime is 86845254758447. The next prime is 86845254758491. The reversal of 86845254758449 is 94485745254868.

It can be written as a sum of positive squares in only one way, i.e., 79979806718449 + 6865448040000 = 8943143^2 + 2620200^2 .

It is not a de Polignac number, because 86845254758449 - 2¹ = 86845254758447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86845254758447) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 358864688964 + ... + 358864689205.

Almost surely, 2^{86845254758449} is an apocalyptic number.

It is an amenable number.

86845254758449 is a deficient number, since it is larger than the sum of its proper divisors (8612752538161).

86845254758449 is a wasteful number, since it uses less digits than its factorization.

86845254758449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717729378191 (or 717729378180 counting only the distinct ones).

The product of its digits is 12386304000, while the sum is 79.

The spelling of 86845254758449 in words is "eighty-six trillion, eight hundred forty-five billion, two hundred fifty-four million, seven hundred fifty-eight thousand, four hundred forty-nine".