38544191650 has 48 divisors (see below), whose sum is σ = 73852416000. Its totient is φ = 14957933760.

The previous prime is 38544191641. The next prime is 38544191657. The reversal of 38544191650 is 5619144583.

It is a self number, because there is not a number n which added to its sum of digits gives 38544191650.

It is not an unprimeable number, because it can be changed into a prime (38544191657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 260191 + ... + 380509.

It is an arithmetic number, because the mean of its divisors is an integer number (1538592000).

Almost surely, 2^38544191650 is an apocalyptic number.

38544191650 is a deficient number, since it is larger than the sum of its proper divisors (35308224350).

38544191650 is a wasteful number, since it uses less digits than its factorization.

38544191650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120523 (or 120518 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 46.

The spelling of 38544191650 in words is "thirty-eight billion, five hundred forty-four million, one hundred ninety-one thousand, six hundred fifty".