27309406340 has 24 divisors (see below), whose sum is σ = 57414739200. Its totient is φ = 10911384288.

The previous prime is 27309406309. The next prime is 27309406357. The reversal of 27309406340 is 4360490372.

It is a junction number, because it is equal to n+sod(n) for n = 27309406294 and 27309406303.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 755540 + ... + 790859.

It is an arithmetic number, because the mean of its divisors is an integer number (2392280800).

Almost surely, 2^27309406340 is an apocalyptic number.

27309406340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27309406340 is an abundant number, since it is smaller than the sum of its proper divisors (30105332860).

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

27309406340 is a wasteful number, since it uses less digits than its factorization.

27309406340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1547291 (or 1547289 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 38.

The spelling of 27309406340 in words is "twenty-seven billion, three hundred nine million, four hundred six thousand, three hundred forty".