38913903819 has 128 divisors (see below), whose sum is σ = 70656000000. Its totient is φ = 20674113408.

The previous prime is 38913903767. The next prime is 38913903829. The reversal of 38913903819 is 91830931983.

38913903819 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38913903819 - 2¹¹ = 38913901771 is a prime.

It is a super-2 number, since 2×38913903819² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38913903829) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 64964482 + ... + 64965080.

It is an arithmetic number, because the mean of its divisors is an integer number (552000000).

Almost surely, 2^38913903819 is an apocalyptic number.

38913903819 is a deficient number, since it is larger than the sum of its proper divisors (31742096181).

38913903819 is a wasteful number, since it uses less digits than its factorization.

38913903819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942 (or 936 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 54.

The spelling of 38913903819 in words is "thirty-eight billion, nine hundred thirteen million, nine hundred three thousand, eight hundred nineteen".