27531329497 has 16 divisors (see below), whose sum is σ = 31542295680. Its totient is φ = 23539920768.

The previous prime is 27531329471. The next prime is 27531329503. The reversal of 27531329497 is 79492313572.

It is not a de Polignac number, because 27531329497 - 2¹⁹ = 27530805209 is a prime.

Its product of digits (2857680) is a multiple of the sum of its prime divisors (6480).

It is not an unprimeable number, because it can be changed into a prime (27531329407) 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, 6106318 + ... + 6110824.

It is an arithmetic number, because the mean of its divisors is an integer number (1971393480).

Almost surely, 2^27531329497 is an apocalyptic number.

It is an amenable number.

27531329497 is a deficient number, since it is larger than the sum of its proper divisors (4010966183).

27531329497 is a wasteful number, since it uses less digits than its factorization.

27531329497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6480.

The product of its digits is 2857680, while the sum is 52.

The spelling of 27531329497 in words is "twenty-seven billion, five hundred thirty-one million, three hundred twenty-nine thousand, four hundred ninety-seven".