27793455551 has 8 divisors (see below), whose sum is σ = 28872158400. Its totient is φ = 26722773280.

The previous prime is 27793455541. The next prime is 27793455577. The reversal of 27793455551 is 15555439772.

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

It is a cyclic number.

It is not a de Polignac number, because 27793455551 - 2¹⁰ = 27793454527 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27793455493 and 27793455502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27793455541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1998080 + ... + 2011941.

It is an arithmetic number, because the mean of its divisors is an integer number (3609019800).

Almost surely, 2^27793455551 is an apocalyptic number.

27793455551 is a deficient number, since it is larger than the sum of its proper divisors (1078702849).

27793455551 is a wasteful number, since it uses less digits than its factorization.

27793455551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4010289.

The product of its digits is 6615000, while the sum is 53.

The spelling of 27793455551 in words is "twenty-seven billion, seven hundred ninety-three million, four hundred fifty-five thousand, five hundred fifty-one".