3900377515129 has 4 divisors (see below), whose sum is σ = 4005793123684. Its totient is φ = 3794961906576.

The previous prime is 3900377515123. The next prime is 3900377515141. The reversal of 3900377515129 is 9215157730093.

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 3500087205904 + 400290309225 = 1870852^2 + 632685^2 .

It is a cyclic number.

It is not a de Polignac number, because 3900377515129 - 2⁹ = 3900377514617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3900377515123) 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 3 ways as a sum of consecutive naturals, for example, 52707804222 + ... + 52707804295.

It is an arithmetic number, because the mean of its divisors is an integer number (1001448280921).

Almost surely, 2^{3900377515129} is an apocalyptic number.

It is an amenable number.

3900377515129 is a deficient number, since it is larger than the sum of its proper divisors (105415608555).

3900377515129 is a wasteful number, since it uses less digits than its factorization.

3900377515129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105415608554.

The product of its (nonzero) digits is 1786050, while the sum is 52.

The spelling of 3900377515129 in words is "three trillion, nine hundred billion, three hundred seventy-seven million, five hundred fifteen thousand, one hundred twenty-nine".