27654141820 has 12 divisors (see below), whose sum is σ = 58073697864. Its totient is φ = 11061656720.

The previous prime is 27654141817. The next prime is 27654141829. The reversal of 27654141820 is 2814145672.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27654141829) 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, 691353526 + ... + 691353565.

It is an arithmetic number, because the mean of its divisors is an integer number (4839474822).

Almost surely, 2^27654141820 is an apocalyptic number.

27654141820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27654141820 is an abundant number, since it is smaller than the sum of its proper divisors (30419556044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27654141820 is a wasteful number, since it uses less digits than its factorization.

27654141820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1382707100 (or 1382707098 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 40.

The spelling of 27654141820 in words is "twenty-seven billion, six hundred fifty-four million, one hundred forty-one thousand, eight hundred twenty".