3901900947829 has 2 divisors, whose sum is σ = 3901900947830. Its totient is φ = 3901900947828.

The previous prime is 3901900947827. The next prime is 3901900947859. The reversal of 3901900947829 is 9287490091093.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2981648295025 + 920252652804 = 1726745^2 + 959298^2 .

It is a cyclic number.

It is not a de Polignac number, because 3901900947829 - 2¹ = 3901900947827 is a prime.

Together with 3901900947827, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3901900947823) 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 as a sum of consecutive naturals, namely, 1950950473914 + 1950950473915.

It is an arithmetic number, because the mean of its divisors is an integer number (1950950473915).

Almost surely, 2^{3901900947829} is an apocalyptic number.

It is an amenable number.

3901900947829 is a deficient number, since it is larger than the sum of its proper divisors (1).

3901900947829 is an equidigital number, since it uses as much as digits as its factorization.

3901900947829 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8817984, while the sum is 61.

The spelling of 3901900947829 in words is "three trillion, nine hundred one billion, nine hundred million, nine hundred forty-seven thousand, eight hundred twenty-nine".