27228553758 has 32 divisors (see below), whose sum is σ = 69151883520. Its totient is φ = 7779586680.

The previous prime is 27228553753. The next prime is 27228553787. The reversal of 27228553758 is 85735582272.

27228553758 is a `hidden beast` number, since 2 + 7 + 22 + 85 + 537 + 5 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27228553753) 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, 36016228 + ... + 36016983.

It is an arithmetic number, because the mean of its divisors is an integer number (2160996360).

Almost surely, 2^27228553758 is an apocalyptic number.

27228553758 is an abundant number, since it is smaller than the sum of its proper divisors (41923329762).

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

27228553758 is a wasteful number, since it uses less digits than its factorization.

27228553758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72033229 (or 72033223 counting only the distinct ones).

The product of its digits is 9408000, while the sum is 54.

The spelling of 27228553758 in words is "twenty-seven billion, two hundred twenty-eight million, five hundred fifty-three thousand, seven hundred fifty-eight".