238065771308218 has 32 divisors (see below), whose sum is σ = 411218137611648. Its totient is φ = 101252299200000.

The previous prime is 238065771308207. The next prime is 238065771308327. The reversal of 238065771308218 is 812803177560832.

It is a happy number.

It is a super-2 number, since 2×238065771308218² (a number of 30 digits) contains 22 as substring.

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, 12854383 + ... + 25325218.

It is an arithmetic number, because the mean of its divisors is an integer number (12850566800364).

Almost surely, 2^{238065771308218} is an apocalyptic number.

238065771308218 is a deficient number, since it is larger than the sum of its proper divisors (173152366303430).

238065771308218 is a wasteful number, since it uses less digits than its factorization.

238065771308218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38182998.

The product of its (nonzero) digits is 27095040, while the sum is 61.

The spelling of 238065771308218 in words is "two hundred thirty-eight trillion, sixty-five billion, seven hundred seventy-one million, three hundred eight thousand, two hundred eighteen".