38773591920 has 800 divisors, whose sum is σ = 159836531712. Its totient is φ = 8527970304.

The previous prime is 38773591777. The next prime is 38773591933. The reversal of 38773591920 is 2919537783.

38773591920 is a `hidden beast` number, since 38 + 77 + 359 + 192 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 200899344 + ... + 200899536.

Almost surely, 2^38773591920 is an apocalyptic number.

38773591920 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38773591920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79918265856).

38773591920 is an abundant number, since it is smaller than the sum of its proper divisors (121062939792).

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

38773591920 is a wasteful number, since it uses less digits than its factorization.

38773591920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371 (or 356 counting only the distinct ones).

The product of its (nonzero) digits is 2857680, while the sum is 54.

The spelling of 38773591920 in words is "thirty-eight billion, seven hundred seventy-three million, five hundred ninety-one thousand, nine hundred twenty".