3678699129 has 16 divisors (see below), whose sum is σ = 5742360960. Its totient is φ = 2050842240.

The previous prime is 3678699127. The next prime is 3678699133. The reversal of 3678699129 is 9219968763.

It is not a de Polignac number, because 3678699129 - 2¹ = 3678699127 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3678699127) 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 15 ways as a sum of consecutive naturals, for example, 2135434 + ... + 2137155.

It is an arithmetic number, because the mean of its divisors is an integer number (358897560).

Almost surely, 2^3678699129 is an apocalyptic number.

It is an amenable number.

3678699129 is a deficient number, since it is larger than the sum of its proper divisors (2063661831).

3678699129 is a wasteful number, since it uses less digits than its factorization.

3678699129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4272640.

The product of its digits is 8817984, while the sum is 60.

The square root of 3678699129 is about 60652.2804929872. The cubic root of 3678699129 is about 1543.7065841593.

It can be divided in two parts, 3678699 and 129, that added together give a triangular number (3678828 = T₂₇₁₂).

The spelling of 3678699129 in words is "three billion, six hundred seventy-eight million, six hundred ninety-nine thousand, one hundred twenty-nine".