28055851386 has 8 divisors (see below), whose sum is σ = 56111702784. Its totient is φ = 9351950460.

The previous prime is 28055851381. The next prime is 28055851429. The reversal of 28055851386 is 68315855082.

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

28055851386 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (28055851381) 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, 2337987610 + ... + 2337987621.

It is an arithmetic number, because the mean of its divisors is an integer number (7013962848).

Almost surely, 2^28055851386 is an apocalyptic number.

28055851386 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28055851386 is a wasteful number, since it uses less digits than its factorization.

28055851386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4675975236.

The product of its (nonzero) digits is 2304000, while the sum is 51.

The spelling of 28055851386 in words is "twenty-eight billion, fifty-five million, eight hundred fifty-one thousand, three hundred eighty-six".