28362617620 has 12 divisors (see below), whose sum is σ = 59561497044. Its totient is φ = 11345047040.

The previous prime is 28362617599. The next prime is 28362617747. The reversal of 28362617620 is 2671626382.

It can be written as a sum of positive squares in 2 ways, for example, as 10230917904 + 18131699716 = 101148^2 + 134654^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 709065421 + ... + 709065460.

It is an arithmetic number, because the mean of its divisors is an integer number (4963458087).

Almost surely, 2^28362617620 is an apocalyptic number.

28362617620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28362617620 is an abundant number, since it is smaller than the sum of its proper divisors (31198879424).

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

28362617620 is a wasteful number, since it uses less digits than its factorization.

28362617620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1418130890 (or 1418130888 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 43.

The spelling of 28362617620 in words is "twenty-eight billion, three hundred sixty-two million, six hundred seventeen thousand, six hundred twenty".