37988048821 has 4 divisors (see below), whose sum is σ = 38053886572. Its totient is φ = 37922211072.

The previous prime is 37988048807. The next prime is 37988048893. The reversal of 37988048821 is 12884088973.

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 25022810596 + 12965238225 = 158186^2 + 113865^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-37988048821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37988048321) 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 3 ways as a sum of consecutive naturals, for example, 32918010 + ... + 32919163.

It is an arithmetic number, because the mean of its divisors is an integer number (9513471643).

Almost surely, 2^37988048821 is an apocalyptic number.

It is an amenable number.

37988048821 is a deficient number, since it is larger than the sum of its proper divisors (65837751).

37988048821 is an equidigital number, since it uses as much as digits as its factorization.

37988048821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65837750.

The product of its (nonzero) digits is 6193152, while the sum is 58.

The spelling of 37988048821 in words is "thirty-seven billion, nine hundred eighty-eight million, forty-eight thousand, eight hundred twenty-one".