28057743846 has 64 divisors (see below), whose sum is σ = 68642956800. Its totient is φ = 8424324000.

The previous prime is 28057743839. The next prime is 28057743851. The reversal of 28057743846 is 64834775082.

28057743846 is a `hidden beast` number, since 28 + 0 + 577 + 4 + 3 + 8 + 46 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 28057743792 and 28057743801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 151930 + ... + 281421.

It is an arithmetic number, because the mean of its divisors is an integer number (1072546200).

Almost surely, 2^28057743846 is an apocalyptic number.

28057743846 is an abundant number, since it is smaller than the sum of its proper divisors (40585212954).

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

28057743846 is a wasteful number, since it uses less digits than its factorization.

28057743846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433482 (or 433476 counting only the distinct ones).

The product of its (nonzero) digits is 9031680, while the sum is 54.

It can be divided in two parts, 280577 and 43846, that added together give a palindrome (324423).

The spelling of 28057743846 in words is "twenty-eight billion, fifty-seven million, seven hundred forty-three thousand, eight hundred forty-six".