38138141649 has 16 divisors (see below), whose sum is σ = 53865250560. Its totient is φ = 23919517440.

The previous prime is 38138141603. The next prime is 38138141651. The reversal of 38138141649 is 94614183183.

It is not a de Polignac number, because 38138141649 - 2⁷ = 38138141521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38138141598 and 38138141607.

It is not an unprimeable number, because it can be changed into a prime (38138141669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40329 + ... + 279110.

It is an arithmetic number, because the mean of its divisors is an integer number (3366578160).

Almost surely, 2^38138141649 is an apocalyptic number.

It is an amenable number.

38138141649 is a deficient number, since it is larger than the sum of its proper divisors (15727108911).

38138141649 is a wasteful number, since it uses less digits than its factorization.

38138141649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321800.

The product of its digits is 497664, while the sum is 48.

The spelling of 38138141649 in words is "thirty-eight billion, one hundred thirty-eight million, one hundred forty-one thousand, six hundred forty-nine".