27730921754 has 8 divisors (see below), whose sum is σ = 42122919360. Its totient is φ = 13689948636.

The previous prime is 27730921739. The next prime is 27730921769. The reversal of 27730921754 is 45712903772.

It is an interprime number because it is at equal distance from previous prime (27730921739) and next prime (27730921769).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 27730921699 and 27730921708.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87755924 + ... + 87756239.

It is an arithmetic number, because the mean of its divisors is an integer number (5265364920).

Almost surely, 2^27730921754 is an apocalyptic number.

27730921754 is a deficient number, since it is larger than the sum of its proper divisors (14391997606).

27730921754 is a wasteful number, since it uses less digits than its factorization.

27730921754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175512244.

The product of its (nonzero) digits is 740880, while the sum is 47.

The spelling of 27730921754 in words is "twenty-seven billion, seven hundred thirty million, nine hundred twenty-one thousand, seven hundred fifty-four".