35685542642 has 16 divisors (see below), whose sum is σ = 53602747800. Its totient is φ = 17817978240.

The previous prime is 35685542621. The next prime is 35685542687. The reversal of 35685542642 is 24624558653.

It can be written as a sum of positive squares in 4 ways, for example, as 28672987561 + 7012555081 = 169331^2 + 83741^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8372792 + ... + 8377052.

Almost surely, 2^35685542642 is an apocalyptic number.

35685542642 is a deficient number, since it is larger than the sum of its proper divisors (17917205158).

35685542642 is a wasteful number, since it uses less digits than its factorization.

35685542642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9101.

The product of its digits is 6912000, while the sum is 50.

The spelling of 35685542642 in words is "thirty-five billion, six hundred eighty-five million, five hundred forty-two thousand, six hundred forty-two".