38174067840 has 128 divisors (see below), whose sum is σ = 126970416000. Its totient is φ = 9737142272.

The previous prime is 38174067839. The next prime is 38174067857. The reversal of 38174067840 is 4876047183.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 38174067840.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 388065 + ... + 476384.

It is an arithmetic number, because the mean of its divisors is an integer number (991956375).

Almost surely, 2^38174067840 is an apocalyptic number.

38174067840 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38174067840 is an abundant number, since it is smaller than the sum of its proper divisors (88796348160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38174067840 is a wasteful number, since it uses less digits than its factorization.

38174067840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864494 (or 864482 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 48.

The spelling of 38174067840 in words is "thirty-eight billion, one hundred seventy-four million, sixty-seven thousand, eight hundred forty".