938278947904 has 21 divisors (see below), whose sum is σ = 1861912664661. Its totient is φ = 469135599360.

The previous prime is 938278947863. The next prime is 938278947911. The reversal of 938278947904 is 409749872839.

The square root of 938278947904 is 968648.

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

It can be written as a sum of positive squares in only one way, i.e., 312534666304 + 625744281600 = 559048^2 + 791040^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 7688644 + ... + 7809724.

It is an arithmetic number, because the mean of its divisors is an integer number (88662507841).

Almost surely, 2^938278947904 is an apocalyptic number.

938278947904 is the 968648-th square number.

It is an amenable number.

938278947904 is a deficient number, since it is larger than the sum of its proper divisors (923633716757).

938278947904 is an frugal number, since it uses more digits than its factorization.

938278947904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242174 (or 121083 counting only the distinct ones).

The product of its (nonzero) digits is 219469824, while the sum is 70.

The spelling of 938278947904 in words is "nine hundred thirty-eight billion, two hundred seventy-eight million, nine hundred forty-seven thousand, nine hundred four".