85868244734434 has 4 divisors (see below), whose sum is σ = 128802367101654. Its totient is φ = 42934122367216.

The previous prime is 85868244734429. The next prime is 85868244734449. The reversal of 85868244734434 is 43443744286858.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 77395214477025 + 8473030257409 = 8797455^2 + 2910847^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21467061183607 + ... + 21467061183610.

Almost surely, 2^{85868244734434} is an apocalyptic number.

85868244734434 is a deficient number, since it is larger than the sum of its proper divisors (42934122367220).

85868244734434 is a wasteful number, since it uses less digits than its factorization.

85868244734434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42934122367219.

The product of its digits is 1981808640, while the sum is 70.

The spelling of 85868244734434 in words is "eighty-five trillion, eight hundred sixty-eight billion, two hundred forty-four million, seven hundred thirty-four thousand, four hundred thirty-four".