28214653747 has 8 divisors (see below), whose sum is σ = 32251666016. Its totient is φ = 24179228352.

The previous prime is 28214653741. The next prime is 28214653757. The reversal of 28214653747 is 74735641282.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28214653747 is a prime.

It is a super-2 number, since 2×28214653747² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28214653747.

It is not an unprimeable number, because it can be changed into a prime (28214653741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 358368 + ... + 429949.

It is an arithmetic number, because the mean of its divisors is an integer number (4031458252).

Almost surely, 2^28214653747 is an apocalyptic number.

28214653747 is a deficient number, since it is larger than the sum of its proper divisors (4037012269).

28214653747 is an equidigital number, since it uses as much as digits as its factorization.

28214653747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793437.

The product of its digits is 2257920, while the sum is 49.

The spelling of 28214653747 in words is "twenty-eight billion, two hundred fourteen million, six hundred fifty-three thousand, seven hundred forty-seven".