19527066813138 has 16 divisors (see below), whose sum is σ = 39054315879360. Its totient is φ = 6508991895536.

The previous prime is 19527066813061. The next prime is 19527066813143. The reversal of 19527066813138 is 83131866072591.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6180798 + ... + 8789561.

It is an arithmetic number, because the mean of its divisors is an integer number (2440894742460).

Almost surely, 2^{19527066813138} is an apocalyptic number.

19527066813138 is an abundant number, since it is smaller than the sum of its proper divisors (19527249066222).

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

19527066813138 is a wasteful number, since it uses less digits than its factorization.

19527066813138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15187761.

The product of its (nonzero) digits is 13063680, while the sum is 60.

The spelling of 19527066813138 in words is "nineteen trillion, five hundred twenty-seven billion, sixty-six million, eight hundred thirteen thousand, one hundred thirty-eight".