85700000242 has 4 divisors (see below), whose sum is σ = 128550000366. Its totient is φ = 42850000120.

The previous prime is 85700000231. The next prime is 85700000303. The reversal of 85700000242 is 24200000758.

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., 76551269041 + 9148731201 = 276679^2 + 95649^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 85700000242.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21425000059 + ... + 21425000062.

Almost surely, 2^85700000242 is an apocalyptic number.

85700000242 is a deficient number, since it is larger than the sum of its proper divisors (42850000124).

85700000242 is a wasteful number, since it uses less digits than its factorization.

85700000242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42850000123.

The product of its (nonzero) digits is 4480, while the sum is 28.

The spelling of 85700000242 in words is "eighty-five billion, seven hundred million, two hundred forty-two", and thus it is an aban number.