238819357097 has 4 divisors (see below), whose sum is σ = 238829643780. Its totient is φ = 238809070416.

The previous prime is 238819357043. The next prime is 238819357111. The reversal of 238819357097 is 790753918832.

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

It can be written as a sum of positive squares in 2 ways, for example, as 189382502761 + 49436854336 = 435181^2 + 222344^2 .

It is a cyclic number.

It is not a de Polignac number, because 238819357097 - 2²² = 238815162793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (238819357027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5108438 + ... + 5154975.

It is an arithmetic number, because the mean of its divisors is an integer number (59707410945).

Almost surely, 2^238819357097 is an apocalyptic number.

It is an amenable number.

238819357097 is a deficient number, since it is larger than the sum of its proper divisors (10286683).

238819357097 is a wasteful number, since it uses less digits than its factorization.

238819357097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10286682.

The product of its (nonzero) digits is 22861440, while the sum is 62.

The spelling of 238819357097 in words is "two hundred thirty-eight billion, eight hundred nineteen million, three hundred fifty-seven thousand, ninety-seven".