238063645090 has 64 divisors (see below), whose sum is σ = 455500661760. Its totient is φ = 89411938560.

The previous prime is 238063645087. The next prime is 238063645091. The reversal of 238063645090 is 90546360832.

It is a happy number.

It is a super-2 number, since 2×238063645090² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 238063645090.

It is not an unprimeable number, because it can be changed into a prime (238063645091) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27797149 + ... + 27805711.

It is an arithmetic number, because the mean of its divisors is an integer number (7117197840).

Almost surely, 2^238063645090 is an apocalyptic number.

238063645090 is a deficient number, since it is larger than the sum of its proper divisors (217437016670).

238063645090 is a wasteful number, since it uses less digits than its factorization.

238063645090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11227.

The product of its (nonzero) digits is 933120, while the sum is 46.

The spelling of 238063645090 in words is "two hundred thirty-eight billion, sixty-three million, six hundred forty-five thousand, ninety".