238971976678 has 4 divisors (see below), whose sum is σ = 358457965020. Its totient is φ = 119485988338.

The previous prime is 238971976673. The next prime is 238971976693. The reversal of 238971976678 is 876679179832.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 238971976678.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238971976673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59742994168 + ... + 59742994171.

It is an arithmetic number, because the mean of its divisors is an integer number (89614491255).

Almost surely, 2^238971976678 is an apocalyptic number.

238971976678 is a deficient number, since it is larger than the sum of its proper divisors (119485988342).

238971976678 is a wasteful number, since it uses less digits than its factorization.

238971976678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119485988341.

The product of its digits is 384072192, while the sum is 73.

The spelling of 238971976678 in words is "two hundred thirty-eight billion, nine hundred seventy-one million, nine hundred seventy-six thousand, six hundred seventy-eight".