4028137686 has 48 divisors (see below), whose sum is σ = 8957660400. Its totient is φ = 1307775744.

The previous prime is 4028137681. The next prime is 4028137697. The reversal of 4028137686 is 6867318204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4028137681) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88570 + ... + 126098.

It is an arithmetic number, because the mean of its divisors is an integer number (186617925).

Almost surely, 2^4028137686 is an apocalyptic number.

4028137686 is an abundant number, since it is smaller than the sum of its proper divisors (4929522714).

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

4028137686 is a wasteful number, since it uses less digits than its factorization.

4028137686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37693 (or 37690 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 4028137686 is about 63467.6113147486. The cubic root of 4028137686 is about 1591.1145075576.

The spelling of 4028137686 in words is "four billion, twenty-eight million, one hundred thirty-seven thousand, six hundred eighty-six".