38186547945 has 72 divisors (see below), whose sum is σ = 76961753856. Its totient is φ = 16113831552.

The previous prime is 38186547929. The next prime is 38186547961. The reversal of 38186547945 is 54974568183.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (38186547929) and next prime (38186547961).

It is not a de Polignac number, because 38186547945 - 2⁴ = 38186547929 is a prime.

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 29497 + ... + 277926.

It is an arithmetic number, because the mean of its divisors is an integer number (1068913248).

Almost surely, 2^38186547945 is an apocalyptic number.

38186547945 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

38186547945 is an abundant number, since it is smaller than the sum of its proper divisors (38775205911).

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

38186547945 is a wasteful number, since it uses less digits than its factorization.

38186547945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307471 (or 307451 counting only the distinct ones).

The product of its digits is 29030400, while the sum is 60.

The spelling of 38186547945 in words is "thirty-eight billion, one hundred eighty-six million, five hundred forty-seven thousand, nine hundred forty-five".