27601308380551 has 4 divisors (see below), whose sum is σ = 27745817848704. Its totient is φ = 27456798912400.

The previous prime is 27601308380543. The next prime is 27601308380563. The reversal of 27601308380551 is 15508380310672.

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

It is a cyclic number.

It is not a de Polignac number, because 27601308380551 - 2³ = 27601308380543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27601308380495 and 27601308380504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27601308380651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72254733790 + ... + 72254734171.

It is an arithmetic number, because the mean of its divisors is an integer number (6936454462176).

Almost surely, 2^{27601308380551} is an apocalyptic number.

27601308380551 is a deficient number, since it is larger than the sum of its proper divisors (144509468153).

27601308380551 is a wasteful number, since it uses less digits than its factorization.

27601308380551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144509468152.

The product of its (nonzero) digits is 1209600, while the sum is 49.

The spelling of 27601308380551 in words is "twenty-seven trillion, six hundred one billion, three hundred eight million, three hundred eighty thousand, five hundred fifty-one".