38635751820 has 48 divisors (see below), whose sum is σ = 108197294688. Its totient is φ = 10301230080.

The previous prime is 38635751789. The next prime is 38635751821. The reversal of 38635751820 is 2815753683.

It is a self number, because there is not a number n which added to its sum of digits gives 38635751820.

It is not an unprimeable number, because it can be changed into a prime (38635751821) 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, 356430 + ... + 452010.

It is an arithmetic number, because the mean of its divisors is an integer number (2254110306).

Almost surely, 2^38635751820 is an apocalyptic number.

38635751820 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38635751820 is an abundant number, since it is smaller than the sum of its proper divisors (69561542868).

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

38635751820 is a wasteful number, since it uses less digits than its factorization.

38635751820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102330 (or 102328 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 48.

The spelling of 38635751820 in words is "thirty-eight billion, six hundred thirty-five million, seven hundred fifty-one thousand, eight hundred twenty".