38131647979 has 8 divisors (see below), whose sum is σ = 40176146000. Its totient is φ = 36090906912.

The previous prime is 38131647971. The next prime is 38131648013. The reversal of 38131647979 is 97974613183.

38131647979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38131647979 - 2³ = 38131647971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38131647971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 918384 + ... + 959005.

It is an arithmetic number, because the mean of its divisors is an integer number (5022018250).

Almost surely, 2^38131647979 is an apocalyptic number.

38131647979 is a deficient number, since it is larger than the sum of its proper divisors (2044498021).

38131647979 is a wasteful number, since it uses less digits than its factorization.

38131647979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1878477.

The product of its digits is 6858432, while the sum is 58.

The spelling of 38131647979 in words is "thirty-eight billion, one hundred thirty-one million, six hundred forty-seven thousand, nine hundred seventy-nine".