69128249135 has 16 divisors (see below), whose sum is σ = 90606805632. Its totient is φ = 50213066400.

The previous prime is 69128249131. The next prime is 69128249147. The reversal of 69128249135 is 53194282196.

It is not a de Polignac number, because 69128249135 - 2² = 69128249131 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69128249131) 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, 730289 + ... + 819498.

It is an arithmetic number, because the mean of its divisors is an integer number (5662925352).

Almost surely, 2^69128249135 is an apocalyptic number.

69128249135 is a deficient number, since it is larger than the sum of its proper divisors (21478556497).

69128249135 is a wasteful number, since it uses less digits than its factorization.

69128249135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1550614.

The product of its digits is 933120, while the sum is 50.

The spelling of 69128249135 in words is "sixty-nine billion, one hundred twenty-eight million, two hundred forty-nine thousand, one hundred thirty-five".