38781135478500 has 96 divisors (see below), whose sum is σ = 113087735953920. Its totient is φ = 10327252480000.

The previous prime is 38781135478483. The next prime is 38781135478507. The reversal of 38781135478500 is 587453118783.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is not an unprimeable number, because it can be changed into a prime (38781135478507) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16900701 + ... + 19057700.

It is an arithmetic number, because the mean of its divisors is an integer number (1177997249520).

Almost surely, 2^{38781135478500} is an apocalyptic number.

38781135478500 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38781135478500 is an abundant number, since it is smaller than the sum of its proper divisors (74306600475420).

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

38781135478500 is a wasteful number, since it uses less digits than its factorization.

38781135478500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35959142 (or 35959130 counting only the distinct ones).

The product of its (nonzero) digits is 22579200, while the sum is 60.

The spelling of 38781135478500 in words is "thirty-eight trillion, seven hundred eighty-one billion, one hundred thirty-five million, four hundred seventy-eight thousand, five hundred".