28840677743 has 8 divisors (see below), whose sum is σ = 29393147808. Its totient is φ = 28288515424.

The previous prime is 28840677739. The next prime is 28840677763. The reversal of 28840677743 is 34777604882.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28840677743 - 2² = 28840677739 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28840677713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116921 + ... + 267117.

It is an arithmetic number, because the mean of its divisors is an integer number (3674143476).

Almost surely, 2^28840677743 is an apocalyptic number.

28840677743 is a deficient number, since it is larger than the sum of its proper divisors (552470065).

28840677743 is a wasteful number, since it uses less digits than its factorization.

28840677743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153873.

The product of its (nonzero) digits is 12644352, while the sum is 56.

The spelling of 28840677743 in words is "twenty-eight billion, eight hundred forty million, six hundred seventy-seven thousand, seven hundred forty-three".