86004157549 has 2 divisors, whose sum is σ = 86004157550. Its totient is φ = 86004157548.

The previous prime is 86004157543. The next prime is 86004157579. The reversal of 86004157549 is 94575140068.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85705490025 + 298667524 = 292755^2 + 17282^2 .

It is a cyclic number.

It is not a de Polignac number, because 86004157549 - 2²³ = 85995768941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86004157543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43002078774 + 43002078775.

It is an arithmetic number, because the mean of its divisors is an integer number (43002078775).

Almost surely, 2^86004157549 is an apocalyptic number.

It is an amenable number.

86004157549 is a deficient number, since it is larger than the sum of its proper divisors (1).

86004157549 is an equidigital number, since it uses as much as digits as its factorization.

86004157549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1209600, while the sum is 49.

The spelling of 86004157549 in words is "eighty-six billion, four million, one hundred fifty-seven thousand, five hundred forty-nine".