27651199308513 has 16 divisors (see below), whose sum is σ = 40220213621952. Its totient is φ = 16758182880000.

The previous prime is 27651199308461. The next prime is 27651199308553. The reversal of 27651199308513 is 31580399115672.

It is a happy number.

It is not a de Polignac number, because 27651199308513 - 2⁶ = 27651199308449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27651199308553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1810653 + ... + 7653813.

It is an arithmetic number, because the mean of its divisors is an integer number (2513763351372).

Almost surely, 2^{27651199308513} is an apocalyptic number.

It is an amenable number.

27651199308513 is a deficient number, since it is larger than the sum of its proper divisors (12569014313439).

27651199308513 is a wasteful number, since it uses less digits than its factorization.

27651199308513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5986576.

The product of its (nonzero) digits is 12247200, while the sum is 60.

The spelling of 27651199308513 in words is "twenty-seven trillion, six hundred fifty-one billion, one hundred ninety-nine million, three hundred eight thousand, five hundred thirteen".