27827001550551 has 8 divisors (see below), whose sum is σ = 42403049981824. Its totient is φ = 15901143743160.

The previous prime is 27827001550547. The next prime is 27827001550571. The reversal of 27827001550551 is 15505510072872.

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

It is not a de Polignac number, because 27827001550551 - 2² = 27827001550547 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27827001550551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27827001550511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 662547655945 + ... + 662547655986.

It is an arithmetic number, because the mean of its divisors is an integer number (5300381247728).

Almost surely, 2^{27827001550551} is an apocalyptic number.

27827001550551 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

27827001550551 is a deficient number, since it is larger than the sum of its proper divisors (14576048431273).

27827001550551 is a wasteful number, since it uses less digits than its factorization.

27827001550551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325095311941.

The product of its (nonzero) digits is 980000, while the sum is 48.

The spelling of 27827001550551 in words is "twenty-seven trillion, eight hundred twenty-seven billion, one million, five hundred fifty thousand, five hundred fifty-one".