85429687499 has 8 divisors (see below), whose sum is σ = 92184113952. Its totient is φ = 78701391360.

The previous prime is 85429687493. The next prime is 85429687531. The reversal of 85429687499 is 99478692458.

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

It is a cyclic number.

It is not a de Polignac number, because 85429687499 - 2⁸ = 85429687243 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (85429687493) 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, 6525782 + ... + 6538859.

It is an arithmetic number, because the mean of its divisors is an integer number (11523014244).

Almost surely, 2^85429687499 is an apocalyptic number.

85429687499 is a deficient number, since it is larger than the sum of its proper divisors (6754426453).

85429687499 is a wasteful number, since it uses less digits than its factorization.

85429687499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13065157.

The product of its digits is 313528320, while the sum is 71.

The spelling of 85429687499 in words is "eighty-five billion, four hundred twenty-nine million, six hundred eighty-seven thousand, four hundred ninety-nine".