38546619149881 has 4 divisors (see below), whose sum is σ = 39875812913700. Its totient is φ = 37217425386064.

The previous prime is 38546619149789. The next prime is 38546619149933. The reversal of 38546619149881 is 18894191664583.

38546619149881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7230183210000 + 31316435939881 = 2688900^2 + 5596109^2 .

It is a cyclic number.

It is not a de Polignac number, because 38546619149881 - 2²¹ = 38546617052729 is a prime.

It is a super-2 number, since 2×38546619149881² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38546619143881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 664596881866 + ... + 664596881923.

It is an arithmetic number, because the mean of its divisors is an integer number (9968953228425).

Almost surely, 2^{38546619149881} is an apocalyptic number.

It is an amenable number.

38546619149881 is a deficient number, since it is larger than the sum of its proper divisors (1329193763819).

38546619149881 is a wasteful number, since it uses less digits than its factorization.

38546619149881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1329193763818.

The product of its digits is 358318080, while the sum is 73.

The spelling of 38546619149881 in words is "thirty-eight trillion, five hundred forty-six billion, six hundred nineteen million, one hundred forty-nine thousand, eight hundred eighty-one".