27654165138790 has 32 divisors (see below), whose sum is σ = 49988136550176. Its totient is φ = 11014864842240.

The previous prime is 27654165138751. The next prime is 27654165138791. The reversal of 27654165138790 is 9783156145672.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27654165138791) 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, 29355229 + ... + 30282631.

It is an arithmetic number, because the mean of its divisors is an integer number (1562129267193).

It is a 1-persistent number, because it is pandigital, but 2⋅27654165138790 = 55308330277580 is not.

Almost surely, 2^{27654165138790} is an apocalyptic number.

27654165138790 is a deficient number, since it is larger than the sum of its proper divisors (22333971411386).

27654165138790 is a wasteful number, since it uses less digits than its factorization.

27654165138790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940024.

The product of its (nonzero) digits is 76204800, while the sum is 64.

The spelling of 27654165138790 in words is "twenty-seven trillion, six hundred fifty-four billion, one hundred sixty-five million, one hundred thirty-eight thousand, seven hundred ninety".