38453648820 has 48 divisors (see below), whose sum is σ = 108392860800. Its totient is φ = 10185483136.

The previous prime is 38453648813. The next prime is 38453648833. The reversal of 38453648820 is 2884635483.

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, 2141712 + ... + 2159591.

It is an arithmetic number, because the mean of its divisors is an integer number (2258184600).

Almost surely, 2^38453648820 is an apocalyptic number.

38453648820 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38453648820 is an abundant number, since it is smaller than the sum of its proper divisors (69939211980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38453648820 is a wasteful number, since it uses less digits than its factorization.

38453648820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4301464 (or 4301462 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 51.

The spelling of 38453648820 in words is "thirty-eight billion, four hundred fifty-three million, six hundred forty-eight thousand, eight hundred twenty".