9385540642 has 16 divisors (see below), whose sum is σ = 15150818232. Its totient is φ = 4344318720.

The previous prime is 9385540639. The next prime is 9385540651. The reversal of 9385540642 is 2460455839.

It is a Cunningham number, because it is equal to 96879²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 8519474601 + 866066041 = 92301^2 + 29429^2 .

It is a junction number, because it is equal to n+sod(n) for n = 9385540592 and 9385540601.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2260593 + ... + 2264740.

Almost surely, 2^9385540642 is an apocalyptic number.

9385540642 is a deficient number, since it is larger than the sum of its proper divisors (5765277590).

9385540642 is a wasteful number, since it uses less digits than its factorization.

9385540642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4525413.

The product of its (nonzero) digits is 1036800, while the sum is 46.

The square root of 9385540642 is about 96879.0000051611. Note that the first 5 decimals coincide. The cubic root of 9385540642 is about 2109.3716180948.

The spelling of 9385540642 in words is "nine billion, three hundred eighty-five million, five hundred forty thousand, six hundred forty-two".