69489637427 has 16 divisors (see below), whose sum is σ = 85033126080. Its totient is φ = 55428983808.

The previous prime is 69489637391. The next prime is 69489637439. The reversal of 69489637427 is 72473698496.

It is a cyclic number.

It is not a de Polignac number, because 69489637427 - 2⁸ = 69489637171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (69489687427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3270008 + ... + 3291189.

It is an arithmetic number, because the mean of its divisors is an integer number (5314570380).

Almost surely, 2^69489637427 is an apocalyptic number.

69489637427 is a deficient number, since it is larger than the sum of its proper divisors (15543488653).

69489637427 is a wasteful number, since it uses less digits than its factorization.

69489637427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6561310.

The product of its digits is 109734912, while the sum is 65.

The spelling of 69489637427 in words is "sixty-nine billion, four hundred eighty-nine million, six hundred thirty-seven thousand, four hundred twenty-seven".