3438129851 has 4 divisors (see below), whose sum is σ = 3702601392. Its totient is φ = 3173658312.

The previous prime is 3438129847. The next prime is 3438129869. The reversal of 3438129851 is 1589218343.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1589218343 = 41 ⋅38761423.

It is a cyclic number.

It is not a de Polignac number, because 3438129851 - 2² = 3438129847 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3438129841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132235751 + ... + 132235776.

It is an arithmetic number, because the mean of its divisors is an integer number (925650348).

Almost surely, 2^3438129851 is an apocalyptic number.

3438129851 is a deficient number, since it is larger than the sum of its proper divisors (264471541).

3438129851 is a wasteful number, since it uses less digits than its factorization.

3438129851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264471540.

The product of its digits is 207360, while the sum is 44.

The square root of 3438129851 is about 58635.5681391423. The cubic root of 3438129851 is about 1509.2948553285.

The spelling of 3438129851 in words is "three billion, four hundred thirty-eight million, one hundred twenty-nine thousand, eight hundred fifty-one".