3438317781 has 32 divisors (see below), whose sum is σ = 5181200640. Its totient is φ = 2253081600.

The previous prime is 3438317731. The next prime is 3438317791. The reversal of 3438317781 is 1877138343.

It is not a de Polignac number, because 3438317781 - 2¹⁹ = 3437793493 is a prime.

It is a super-2 number, since 2×3438317781² = 23644058326281527922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3438317731) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 674161 + ... + 679241.

It is an arithmetic number, because the mean of its divisors is an integer number (161912520).

Almost surely, 2^3438317781 is an apocalyptic number.

It is an amenable number.

3438317781 is a deficient number, since it is larger than the sum of its proper divisors (1742882859).

3438317781 is a wasteful number, since it uses less digits than its factorization.

3438317781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5514 (or 5508 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 3438317781 is about 58637.1706428610. The cubic root of 3438317781 is about 1509.3223544463.

The spelling of 3438317781 in words is "three billion, four hundred thirty-eight million, three hundred seventeen thousand, seven hundred eighty-one".