3808149121 has 6 divisors (see below), whose sum is σ = 4429887810. Its totient is φ = 3264127776.

The previous prime is 3808149097. The next prime is 3808149131. The reversal of 3808149121 is 1219418083.

It can be written as a sum of positive squares in only one way, i.e., 3685825521 + 122323600 = 60711^2 + 11060^2 .

It is not a de Polignac number, because 3808149121 - 2²¹ = 3806051969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3808149131) 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 5 ways as a sum of consecutive naturals, for example, 38858616 + ... + 38858713.

It is an arithmetic number, because the mean of its divisors is an integer number (738314635).

Almost surely, 2^3808149121 is an apocalyptic number.

It is an amenable number.

3808149121 is a deficient number, since it is larger than the sum of its proper divisors (621738689).

3808149121 is an equidigital number, since it uses as much as digits as its factorization.

3808149121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77717343 (or 77717336 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 3808149121 is about 61710.2027301807. The cubic root of 3808149121 is about 1561.6054479420.

The spelling of 3808149121 in words is "three billion, eight hundred eight million, one hundred forty-nine thousand, one hundred twenty-one".