27941914651 has 4 divisors (see below), whose sum is σ = 31933616752. Its totient is φ = 23950212552.

The previous prime is 27941914621. The next prime is 27941914657. The reversal of 27941914651 is 15641914972.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 27941914651 - 2¹³ = 27941906459 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27941914595 and 27941914604.

It is not an unprimeable number, because it can be changed into a prime (27941914657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1995851040 + ... + 1995851053.

It is an arithmetic number, because the mean of its divisors is an integer number (7983404188).

Almost surely, 2^27941914651 is an apocalyptic number.

27941914651 is a deficient number, since it is larger than the sum of its proper divisors (3991702101).

27941914651 is an equidigital number, since it uses as much as digits as its factorization.

27941914651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3991702100.

The product of its digits is 544320, while the sum is 49.

The spelling of 27941914651 in words is "twenty-seven billion, nine hundred forty-one million, nine hundred fourteen thousand, six hundred fifty-one".