2864188628 has 48 divisors (see below), whose sum is σ = 6155936640. Its totient is φ = 1138046976.

The previous prime is 2864188609. The next prime is 2864188631. The reversal of 2864188628 is 8268814682.

It is a self number, because there is not a number n which added to its sum of digits gives 2864188628.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13013 + ... + 76796.

It is an arithmetic number, because the mean of its divisors is an integer number (128248680).

Almost surely, 2^2864188628 is an apocalyptic number.

2864188628 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2864188628 is an abundant number, since it is smaller than the sum of its proper divisors (3291748012).

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

2864188628 is a wasteful number, since it uses less digits than its factorization.

2864188628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89904 (or 89902 counting only the distinct ones).

The product of its digits is 2359296, while the sum is 53.

The square root of 2864188628 is about 53518.1149518553. The cubic root of 2864188628 is about 1420.1488682119.

The spelling of 2864188628 in words is "two billion, eight hundred sixty-four million, one hundred eighty-eight thousand, six hundred twenty-eight".