9942889734 has 24 divisors (see below), whose sum is σ = 22676766840. Its totient is φ = 3139859808.

The previous prime is 9942889727. The next prime is 9942889763. The reversal of 9942889734 is 4379882499.

9942889734 is a `hidden beast` number, since 99 + 428 + 8 + 97 + 34 = 666.

It is a super-2 number, since 2×9942889734² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14536047 + ... + 14536730.

It is an arithmetic number, because the mean of its divisors is an integer number (944865285).

Almost surely, 2^9942889734 is an apocalyptic number.

9942889734 is an abundant number, since it is smaller than the sum of its proper divisors (12733877106).

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

9942889734 is a wasteful number, since it uses less digits than its factorization.

9942889734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29072804 (or 29072801 counting only the distinct ones).

The product of its digits is 31352832, while the sum is 63.

The square root of 9942889734 is about 99714.0398038310. The cubic root of 9942889734 is about 2150.3255129282.

The spelling of 9942889734 in words is "nine billion, nine hundred forty-two million, eight hundred eighty-nine thousand, seven hundred thirty-four".