3678699128 has 32 divisors (see below), whose sum is σ = 7435108800. Its totient is φ = 1696268928.

The previous prime is 3678699127. The next prime is 3678699133. The reversal of 3678699128 is 8219968763.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3678699127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98678 + ... + 130746.

It is an arithmetic number, because the mean of its divisors is an integer number (232347150).

Almost surely, 2^3678699128 is an apocalyptic number.

It is an amenable number.

3678699128 is an abundant number, since it is smaller than the sum of its proper divisors (3756409672).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3678699128 is a wasteful number, since it uses less digits than its factorization.

3678699128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33191 (or 33187 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 59.

The square root of 3678699128 is about 60652.2804847435. The cubic root of 3678699128 is about 1543.7065840194.

The spelling of 3678699128 in words is "three billion, six hundred seventy-eight million, six hundred ninety-nine thousand, one hundred twenty-eight".