3952904380129 has 4 divisors (see below), whose sum is σ = 4059739633684. Its totient is φ = 3846069126576.

The previous prime is 3952904380121. The next prime is 3952904380171. The reversal of 3952904380129 is 9210834092593.

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 1922701158225 + 2030203221904 = 1386615^2 + 1424852^2 .

It is a cyclic number.

It is not a de Polignac number, because 3952904380129 - 2³ = 3952904380121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3952904380129.

It is not an unprimeable number, because it can be changed into a prime (3952904380121) 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 in 3 ways as a sum of consecutive naturals, for example, 53417626722 + ... + 53417626795.

It is an arithmetic number, because the mean of its divisors is an integer number (1014934908421).

Almost surely, 2^{3952904380129} is an apocalyptic number.

It is an amenable number.

3952904380129 is a deficient number, since it is larger than the sum of its proper divisors (106835253555).

3952904380129 is a wasteful number, since it uses less digits than its factorization.

3952904380129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106835253554.

The product of its (nonzero) digits is 4199040, while the sum is 55.

The spelling of 3952904380129 in words is "three trillion, nine hundred fifty-two billion, nine hundred four million, three hundred eighty thousand, one hundred twenty-nine".