27321709380 has 96 divisors (see below), whose sum is σ = 88911406080. Its totient is φ = 6139109760.

The previous prime is 27321709339. The next prime is 27321709463. The reversal of 27321709380 is 8390712372.

It is a Harshad number since it is a multiple of its sum of digits (42).

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 31 ways as a sum of consecutive naturals, for example, 526506 + ... + 576065.

It is an arithmetic number, because the mean of its divisors is an integer number (926160480).

Almost surely, 2^27321709380 is an apocalyptic number.

27321709380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27321709380 is an abundant number, since it is smaller than the sum of its proper divisors (61589696700).

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

27321709380 is a wasteful number, since it uses less digits than its factorization.

27321709380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102649 (or 1102647 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 42.

The spelling of 27321709380 in words is "twenty-seven billion, three hundred twenty-one million, seven hundred nine thousand, three hundred eighty".