238491129012964 has 27 divisors (see below), whose sum is σ = 419882680428393. Its totient is φ = 118528955645808.

The previous prime is 238491129012953. The next prime is 238491129012979. The reversal of 238491129012964 is 469210921194832.

The square root of 238491129012964 is 15443158.

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., 229479173044900 + 9011955968064 = 15148570^2 + 3001992^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5157991654 + ... + 5158037890.

Almost surely, 2^{238491129012964} is an apocalyptic number.

238491129012964 is the 15443158-th square number.

It is an amenable number.

238491129012964 is a deficient number, since it is larger than the sum of its proper divisors (181391551415429).

238491129012964 is an frugal number, since it uses more digits than its factorization.

238491129012964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92812 (or 46406 counting only the distinct ones).

The product of its (nonzero) digits is 13436928, while the sum is 61.

The spelling of 238491129012964 in words is "two hundred thirty-eight trillion, four hundred ninety-one billion, one hundred twenty-nine million, twelve thousand, nine hundred sixty-four".