27385528017428 has 48 divisors (see below), whose sum is σ = 54987008778240. Its totient is φ = 11690391779424.

The previous prime is 27385528017427. The next prime is 27385528017431. The reversal of 27385528017428 is 82471082558372.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27385528017427) 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, 53080733 + ... + 53594171.

It is an arithmetic number, because the mean of its divisors is an integer number (1145562682880).

Almost surely, 2^{27385528017428} is an apocalyptic number.

27385528017428 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

27385528017428 is an abundant number, since it is smaller than the sum of its proper divisors (27601480760812).

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

27385528017428 is a wasteful number, since it uses less digits than its factorization.

27385528017428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520956 (or 520954 counting only the distinct ones).

The product of its (nonzero) digits is 60211200, while the sum is 62.

The spelling of 27385528017428 in words is "twenty-seven trillion, three hundred eighty-five billion, five hundred twenty-eight million, seventeen thousand, four hundred twenty-eight".