85399239993 has 8 divisors (see below), whose sum is σ = 113916563328. Its totient is φ = 56907371664.

The previous prime is 85399239977. The next prime is 85399240033. The reversal of 85399239993 is 39993299358.

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

It is not a de Polignac number, because 85399239993 - 2⁴ = 85399239977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85399239943) 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, 6355921 + ... + 6369342.

It is an arithmetic number, because the mean of its divisors is an integer number (14239570416).

Almost surely, 2^85399239993 is an apocalyptic number.

It is an amenable number.

85399239993 is a deficient number, since it is larger than the sum of its proper divisors (28517323335).

85399239993 is a wasteful number, since it uses less digits than its factorization.

85399239993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12727503.

The product of its digits is 127545840, while the sum is 69.

The spelling of 85399239993 in words is "eighty-five billion, three hundred ninety-nine million, two hundred thirty-nine thousand, nine hundred ninety-three".