9738897942 has 16 divisors (see below), whose sum is σ = 19478979072. Its totient is φ = 3246102120.

The previous prime is 9738897941. The next prime is 9738897979. The reversal of 9738897942 is 2497988379.

It is a super-2 number, since 2×9738897942² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9738897941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86467 + ... + 164177.

It is an arithmetic number, because the mean of its divisors is an integer number (1217436192).

Almost surely, 2^9738897942 is an apocalyptic number.

9738897942 is an abundant number, since it is smaller than the sum of its proper divisors (9740081130).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9738897942 is a wasteful number, since it uses less digits than its factorization.

9738897942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98603.

The product of its digits is 54867456, while the sum is 66.

The square root of 9738897942 is about 98685.8548222591. The cubic root of 9738897942 is about 2135.5181729802.

The spelling of 9738897942 in words is "nine billion, seven hundred thirty-eight million, eight hundred ninety-seven thousand, nine hundred forty-two".