38190131639 has 8 divisors (see below), whose sum is σ = 43098581520. Its totient is φ = 33521118400.

The previous prime is 38190131633. The next prime is 38190131657. The reversal of 38190131639 is 93613109183.

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

It is a de Polignac number, because none of the positive numbers 2^k-38190131639 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38190131639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38190131633) 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 7 ways as a sum of consecutive naturals, for example, 59858822 + ... + 59859459.

It is an arithmetic number, because the mean of its divisors is an integer number (5387322690).

Almost surely, 2^38190131639 is an apocalyptic number.

38190131639 is a deficient number, since it is larger than the sum of its proper divisors (4908449881).

38190131639 is a wasteful number, since it uses less digits than its factorization.

38190131639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119718321.

The product of its (nonzero) digits is 104976, while the sum is 44.

The spelling of 38190131639 in words is "thirty-eight billion, one hundred ninety million, one hundred thirty-one thousand, six hundred thirty-nine".