38678855091 has 8 divisors (see below), whose sum is σ = 51577206720. Its totient is φ = 25783203432.

The previous prime is 38678855087. The next prime is 38678855101. The reversal of 38678855091 is 19055887683.

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

It is not a de Polignac number, because 38678855091 - 2² = 38678855087 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38678855011) 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 7 ways as a sum of consecutive naturals, for example, 641325 + ... + 699038.

It is an arithmetic number, because the mean of its divisors is an integer number (6447150840).

Almost surely, 2^38678855091 is an apocalyptic number.

38678855091 is a deficient number, since it is larger than the sum of its proper divisors (12898351629).

38678855091 is a wasteful number, since it uses less digits than its factorization.

38678855091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1349985.

The product of its (nonzero) digits is 14515200, while the sum is 60.

The spelling of 38678855091 in words is "thirty-eight billion, six hundred seventy-eight million, eight hundred fifty-five thousand, ninety-one".