38453648818 has 32 divisors (see below), whose sum is σ = 62519942016. Its totient is φ = 17633163648.

The previous prime is 38453648813. The next prime is 38453648833. The reversal of 38453648818 is 81884635483.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (38453648813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2962230 + ... + 2975182.

It is an arithmetic number, because the mean of its divisors is an integer number (1953748188).

Almost surely, 2^38453648818 is an apocalyptic number.

38453648818 is a deficient number, since it is larger than the sum of its proper divisors (24066293198).

38453648818 is a wasteful number, since it uses less digits than its factorization.

38453648818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13698.

The product of its digits is 17694720, while the sum is 58.

The spelling of 38453648818 in words is "thirty-eight billion, four hundred fifty-three million, six hundred forty-eight thousand, eight hundred eighteen".