86291857945 has 8 divisors (see below), whose sum is σ = 103797368640. Its totient is φ = 68868726960.

The previous prime is 86291857933. The next prime is 86291857957. The reversal of 86291857945 is 54975819268.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (86291857933) and next prime (86291857957).

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

It is not a de Polignac number, because 86291857945 - 2¹³ = 86291849753 is a prime.

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, 20592621 + ... + 20596810.

It is an arithmetic number, because the mean of its divisors is an integer number (12974671080).

Almost surely, 2^86291857945 is an apocalyptic number.

It is an amenable number.

86291857945 is a deficient number, since it is larger than the sum of its proper divisors (17505510695).

86291857945 is a wasteful number, since it uses less digits than its factorization.

86291857945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41189855.

The product of its digits is 43545600, while the sum is 64.

The spelling of 86291857945 in words is "eighty-six billion, two hundred ninety-one million, eight hundred fifty-seven thousand, nine hundred forty-five".