238236200645 has 16 divisors (see below), whose sum is σ = 287794531440. Its totient is φ = 189316882944.

The previous prime is 238236200597. The next prime is 238236200659. The reversal of 238236200645 is 546002632832.

It can be written as a sum of positive squares in 8 ways, for example, as 2924862724 + 235311337921 = 54082^2 + 485089^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-238236200645 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 842921 + ... + 1089489.

It is an arithmetic number, because the mean of its divisors is an integer number (17987158215).

Almost surely, 2^238236200645 is an apocalyptic number.

It is an amenable number.

238236200645 is a deficient number, since it is larger than the sum of its proper divisors (49558330795).

238236200645 is a wasteful number, since it uses less digits than its factorization.

238236200645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247864.

The product of its (nonzero) digits is 414720, while the sum is 41.

The spelling of 238236200645 in words is "two hundred thirty-eight billion, two hundred thirty-six million, two hundred thousand, six hundred forty-five".