86521499045 has 8 divisors (see below), whose sum is σ = 103827390840. Its totient is φ = 69216137920.

The previous prime is 86521499039. The next prime is 86521499059. The reversal of 86521499045 is 54099412568.

It can be written as a sum of positive squares in 4 ways, for example, as 18382749889 + 68138749156 = 135583^2 + 261034^2 .

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

It is not a de Polignac number, because 86521499045 - 2³⁰ = 85447757221 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 502415 + ... + 652275.

It is an arithmetic number, because the mean of its divisors is an integer number (12978423855).

Almost surely, 2^86521499045 is an apocalyptic number.

It is an amenable number.

86521499045 is a deficient number, since it is larger than the sum of its proper divisors (17305891795).

86521499045 is a wasteful number, since it uses less digits than its factorization.

86521499045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265335.

The product of its (nonzero) digits is 3110400, while the sum is 53.

The spelling of 86521499045 in words is "eighty-six billion, five hundred twenty-one million, four hundred ninety-nine thousand, forty-five".