28237871344 has 20 divisors (see below), whose sum is σ = 56189549224. Its totient is φ = 13737342528.

The previous prime is 28237871341. The next prime is 28237871353. The reversal of 28237871344 is 44317873282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28237871341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23848962 + ... + 23850145.

Almost surely, 2^28237871344 is an apocalyptic number.

It is an amenable number.

28237871344 is a deficient number, since it is larger than the sum of its proper divisors (27951677880).

28237871344 is a wasteful number, since it uses less digits than its factorization.

28237871344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47699152 (or 47699146 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 49.

The spelling of 28237871344 in words is "twenty-eight billion, two hundred thirty-seven million, eight hundred seventy-one thousand, three hundred forty-four".