38919811770 has 128 divisors (see below), whose sum is σ = 118919923200. Its totient is φ = 8872920576.

The previous prime is 38919811757. The next prime is 38919811783. The reversal of 38919811770 is 7711891983.

38919811770 is a `hidden beast` number, since 389 + 1 + 98 + 1 + 177 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (38919811757) and next prime (38919811783).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 708742 + ... + 761678.

It is an arithmetic number, because the mean of its divisors is an integer number (929061900).

Almost surely, 2^38919811770 is an apocalyptic number.

38919811770 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 38919811770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59459961600).

38919811770 is an abundant number, since it is smaller than the sum of its proper divisors (80000111430).

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

38919811770 is a wasteful number, since it uses less digits than its factorization.

38919811770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53349 (or 53343 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 54.

The spelling of 38919811770 in words is "thirty-eight billion, nine hundred nineteen million, eight hundred eleven thousand, seven hundred seventy".