27223135380 has 72 divisors (see below), whose sum is σ = 94373540352. Its totient is φ = 6222430656.

The previous prime is 27223135369. The next prime is 27223135417. The reversal of 27223135380 is 8353132272.

27223135380 is a `hidden beast` number, since 2 + 7 + 223 + 1 + 353 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10801572 + ... + 10804091.

It is an arithmetic number, because the mean of its divisors is an integer number (1310743616).

Almost surely, 2^27223135380 is an apocalyptic number.

27223135380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27223135380 is an abundant number, since it is smaller than the sum of its proper divisors (67150404972).

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

27223135380 is a wasteful number, since it uses less digits than its factorization.

27223135380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21605685 (or 21605680 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The spelling of 27223135380 in words is "twenty-seven billion, two hundred twenty-three million, one hundred thirty-five thousand, three hundred eighty".