86219691649 has 8 divisors (see below), whose sum is σ = 106116543680. Its totient is φ = 68217777936.

The previous prime is 86219691647. The next prime is 86219691667. The reversal of 86219691649 is 94619691268.

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

It is not a de Polignac number, because 86219691649 - 2¹ = 86219691647 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86219691647) 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, 473734479 + ... + 473734660.

It is an arithmetic number, because the mean of its divisors is an integer number (13264567960).

Almost surely, 2^86219691649 is an apocalyptic number.

It is an amenable number.

86219691649 is a deficient number, since it is larger than the sum of its proper divisors (19896852031).

86219691649 is a wasteful number, since it uses less digits than its factorization.

86219691649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947469159.

The product of its digits is 10077696, while the sum is 61.

The spelling of 86219691649 in words is "eighty-six billion, two hundred nineteen million, six hundred ninety-one thousand, six hundred forty-nine".