28294693347 has 16 divisors (see below), whose sum is σ = 38544220160. Its totient is φ = 18458217792.

The previous prime is 28294693337. The next prime is 28294693351. The reversal of 28294693347 is 74339649282.

It is not a de Polignac number, because 28294693347 - 2⁶ = 28294693283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28294693327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 480847 + ... + 536472.

It is an arithmetic number, because the mean of its divisors is an integer number (2409013760).

Almost surely, 2^28294693347 is an apocalyptic number.

28294693347 is a deficient number, since it is larger than the sum of its proper divisors (10249526813).

28294693347 is a wasteful number, since it uses less digits than its factorization.

28294693347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1017522.

The product of its digits is 15676416, while the sum is 57.

The spelling of 28294693347 in words is "twenty-eight billion, two hundred ninety-four million, six hundred ninety-three thousand, three hundred forty-seven".