947923811242 has 8 divisors (see below), whose sum is σ = 1460315060676. Its totient is φ = 461152124352.

The previous prime is 947923811239. The next prime is 947923811251. The reversal of 947923811242 is 242118329749.

It can be written as a sum of positive squares in 2 ways, for example, as 887004192481 + 60919618761 = 941809^2 + 246819^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 947923811242.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6404890543 + ... + 6404890690.

Almost surely, 2^947923811242 is an apocalyptic number.

947923811242 is a deficient number, since it is larger than the sum of its proper divisors (512391249434).

947923811242 is a wasteful number, since it uses less digits than its factorization.

947923811242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12809781272.

The product of its digits is 1741824, while the sum is 52.

The spelling of 947923811242 in words is "nine hundred forty-seven billion, nine hundred twenty-three million, eight hundred eleven thousand, two hundred forty-two".