38653780940018 has 4 divisors (see below), whose sum is σ = 57980671410030. Its totient is φ = 19326890470008.

The previous prime is 38653780940003. The next prime is 38653780940023. The reversal of 38653780940018 is 81004908735683.

38653780940018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 36665362267249 + 1988418672769 = 6055193^2 + 1410113^2 .

It is a super-2 number, since 2×38653780940018² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9663445235003 + ... + 9663445235006.

Almost surely, 2^{38653780940018} is an apocalyptic number.

38653780940018 is a deficient number, since it is larger than the sum of its proper divisors (19326890470012).

38653780940018 is a wasteful number, since it uses less digits than its factorization.

38653780940018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19326890470011.

The product of its (nonzero) digits is 34836480, while the sum is 62.

The spelling of 38653780940018 in words is "thirty-eight trillion, six hundred fifty-three billion, seven hundred eighty million, nine hundred forty thousand, eighteen".