238630797577278 has 24 divisors (see below), whose sum is σ = 544245678685800. Its totient is φ = 75357093971664.

The previous prime is 238630797577243. The next prime is 238630797577349. The reversal of 238630797577278 is 872775797036832.

238630797577278 is a `hidden beast` number, since 2 + 3 + 8 + 6 + 30 + 7 + 9 + 7 + 577 + 2 + 7 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 238630797577197 and 238630797577206.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 348875434713 + ... + 348875435396.

It is an arithmetic number, because the mean of its divisors is an integer number (22676903278575).

Almost surely, 2^{238630797577278} is an apocalyptic number.

238630797577278 is an abundant number, since it is smaller than the sum of its proper divisors (305614881108522).

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

238630797577278 is a wasteful number, since it uses less digits than its factorization.

238630797577278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697750870136 (or 697750870133 counting only the distinct ones).

The product of its (nonzero) digits is 10455298560, while the sum is 81.

The spelling of 238630797577278 in words is "two hundred thirty-eight trillion, six hundred thirty billion, seven hundred ninety-seven million, five hundred seventy-seven thousand, two hundred seventy-eight".