9142797974436 has 81 divisors (see below), whose sum is σ = 26884553191041. Its totient is φ = 2612191708224.

The previous prime is 9142797974423. The next prime is 9142797974461. The reversal of 9142797974436 is 6344797972419.

The square root of 9142797974436 is 3023706.

It is a perfect power (a square), and thus also a powerful number.

9142797974436 is a `hidden beast` number, since 9 + 1 + 4 + 2 + 7 + 97 + 97 + 443 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 9057150440100 + 85647534336 = 3009510^2 + 292656^2 .

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 126959656 + ... + 127031648.

Almost surely, 2^{9142797974436} is an apocalyptic number.

9142797974436 is the 3023706-th square number.

It is an amenable number.

9142797974436 is an abundant number, since it is smaller than the sum of its proper divisors (17741755216605).

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

9142797974436 is an frugal number, since it uses more digits than its factorization.

9142797974436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144010 (or 72005 counting only the distinct ones).

The product of its digits is 576108288, while the sum is 72.

The spelling of 9142797974436 in words is "nine trillion, one hundred forty-two billion, seven hundred ninety-seven million, nine hundred seventy-four thousand, four hundred thirty-six".