28341293972 has 12 divisors (see below), whose sum is σ = 49913171700. Its totient is φ = 14080387776.

The previous prime is 28341293957. The next prime is 28341293977. The reversal of 28341293972 is 27939214382.

It can be written as a sum of positive squares in 2 ways, for example, as 17995149316 + 10346144656 = 134146^2 + 101716^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 28341293972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28341293977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22564097 + ... + 22565352.

It is an arithmetic number, because the mean of its divisors is an integer number (4159430975).

Almost surely, 2^28341293972 is an apocalyptic number.

It is an amenable number.

28341293972 is a deficient number, since it is larger than the sum of its proper divisors (21571877728).

28341293972 is a wasteful number, since it uses less digits than its factorization.

28341293972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45129610 (or 45129608 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 50.

The spelling of 28341293972 in words is "twenty-eight billion, three hundred forty-one million, two hundred ninety-three thousand, nine hundred seventy-two".