9816951942 has 36 divisors (see below), whose sum is σ = 24742728036. Its totient is φ = 2804843160.

The previous prime is 9816951941. The next prime is 9816951943. The reversal of 9816951942 is 2491596189.

9816951942 is a `hidden beast` number, since 9 + 81 + 6 + 9 + 519 + 42 = 666.

It is an interprime number because it is at equal distance from previous prime (9816951941) and next prime (9816951943).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9816951941) by changing a digit.

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 17 ways as a sum of consecutive naturals, for example, 5564284 + ... + 5566047.

It is an arithmetic number, because the mean of its divisors is an integer number (687298001).

Almost surely, 2^9816951942 is an apocalyptic number.

9816951942 is an abundant number, since it is smaller than the sum of its proper divisors (14925776094).

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

9816951942 is a wasteful number, since it uses less digits than its factorization.

9816951942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11130353 (or 11130343 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 54.

The square root of 9816951942 is about 99080.5326085806. The cubic root of 9816951942 is about 2141.2081527784.

The spelling of 9816951942 in words is "nine billion, eight hundred sixteen million, nine hundred fifty-one thousand, nine hundred forty-two".