85866407098 has 8 divisors (see below), whose sum is σ = 130911079860. Its totient is φ = 42229380480.

The previous prime is 85866407083. The next prime is 85866407101. The reversal of 85866407098 is 89070466858.

It can be written as a sum of positive squares in 2 ways, for example, as 83976505369 + 1889901729 = 289787^2 + 43473^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (61).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351911383 + ... + 351911626.

Almost surely, 2^85866407098 is an apocalyptic number.

85866407098 is a deficient number, since it is larger than the sum of its proper divisors (45044672762).

85866407098 is a wasteful number, since it uses less digits than its factorization.

85866407098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703823072.

The product of its (nonzero) digits is 23224320, while the sum is 61.

The spelling of 85866407098 in words is "eighty-five billion, eight hundred sixty-six million, four hundred seven thousand, ninety-eight".