28862195238 has 48 divisors (see below), whose sum is σ = 65445940560. Its totient is φ = 9532450656.

The previous prime is 28862195237. The next prime is 28862195261. The reversal of 28862195238 is 83259126882.

It is a happy number.

28862195238 is a `hidden beast` number, since 2 + 8 + 8 + 621 + 9 + 5 + 2 + 3 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28862195237) 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, 219445 + ... + 325392.

It is an arithmetic number, because the mean of its divisors is an integer number (1363457095).

Almost surely, 2^28862195238 is an apocalyptic number.

28862195238 is an abundant number, since it is smaller than the sum of its proper divisors (36583745322).

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

28862195238 is a wasteful number, since it uses less digits than its factorization.

28862195238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544963 (or 544951 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 54.

The spelling of 28862195238 in words is "twenty-eight billion, eight hundred sixty-two million, one hundred ninety-five thousand, two hundred thirty-eight".