27642975340 has 12 divisors (see below), whose sum is σ = 58050248256. Its totient is φ = 11057190128.

The previous prime is 27642975337. The next prime is 27642975343. The reversal of 27642975340 is 4357924672.

It is an interprime number because it is at equal distance from previous prime (27642975337) and next prime (27642975343).

It is not an unprimeable number, because it can be changed into a prime (27642975343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 691074364 + ... + 691074403.

It is an arithmetic number, because the mean of its divisors is an integer number (4837520688).

Almost surely, 2^27642975340 is an apocalyptic number.

27642975340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27642975340 is an abundant number, since it is smaller than the sum of its proper divisors (30407272916).

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

27642975340 is a wasteful number, since it uses less digits than its factorization.

27642975340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1382148776 (or 1382148774 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 49.

The spelling of 27642975340 in words is "twenty-seven billion, six hundred forty-two million, nine hundred seventy-five thousand, three hundred forty".