27197453768 has 32 divisors (see below), whose sum is σ = 51223224960. Its totient is φ = 13538007360.

The previous prime is 27197453743. The next prime is 27197453779. The reversal of 27197453768 is 86735479172.

It is a happy number.

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, 3297746 + ... + 3305982.

It is an arithmetic number, because the mean of its divisors is an integer number (1600725780).

Almost surely, 2^27197453768 is an apocalyptic number.

It is an amenable number.

27197453768 is a deficient number, since it is larger than the sum of its proper divisors (24025771192).

27197453768 is a wasteful number, since it uses less digits than its factorization.

27197453768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10037 (or 10033 counting only the distinct ones).

The product of its digits is 17781120, while the sum is 59.

The spelling of 27197453768 in words is "twenty-seven billion, one hundred ninety-seven million, four hundred fifty-three thousand, seven hundred sixty-eight".