38183356640 has 192 divisors, whose sum is σ = 107435305152. Its totient is φ = 12640665600.

The previous prime is 38183356639. The next prime is 38183356649. The reversal of 38183356640 is 4665338183.

38183356640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38183356649) 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, 1658810 + ... + 1681670.

It is an arithmetic number, because the mean of its divisors is an integer number (559558881).

Almost surely, 2^38183356640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38183356640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53717652576).

38183356640 is an abundant number, since it is smaller than the sum of its proper divisors (69251948512).

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

38183356640 is a wasteful number, since it uses less digits than its factorization.

38183356640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22973 (or 22965 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 47.

The spelling of 38183356640 in words is "thirty-eight billion, one hundred eighty-three million, three hundred fifty-six thousand, six hundred forty".