9842744642 has 8 divisors (see below), whose sum is σ = 14767233600. Its totient is φ = 4920333444.

The previous prime is 9842744627. The next prime is 9842744657. The reversal of 9842744642 is 2464472489.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (9842744627) and next prime (9842744657).

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

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, 507542 + ... + 526577.

It is an arithmetic number, because the mean of its divisors is an integer number (1845904200).

Almost surely, 2^9842744642 is an apocalyptic number.

9842744642 is a deficient number, since it is larger than the sum of its proper divisors (4924488958).

9842744642 is a wasteful number, since it uses less digits than its factorization.

9842744642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038880.

The product of its digits is 3096576, while the sum is 50.

The square root of 9842744642 is about 99210.6075074636. The cubic root of 9842744642 is about 2143.0817568162.

The spelling of 9842744642 in words is "nine billion, eight hundred forty-two million, seven hundred forty-four thousand, six hundred forty-two".