69128810849 has 8 divisors (see below), whose sum is σ = 79020646848. Its totient is φ = 59241047760.

The previous prime is 69128810819. The next prime is 69128810869. The reversal of 69128810849 is 94801882196.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 69128810849 - 2³² = 64833843553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 69128810794 and 69128810803.

It is not an unprimeable number, because it can be changed into a prime (69128810819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 981767 + ... + 1049820.

It is an arithmetic number, because the mean of its divisors is an integer number (9877580856).

Almost surely, 2^69128810849 is an apocalyptic number.

It is an amenable number.

69128810849 is a deficient number, since it is larger than the sum of its proper divisors (9891835999).

69128810849 is a wasteful number, since it uses less digits than its factorization.

69128810849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2036455.

The product of its (nonzero) digits is 1990656, while the sum is 56.

The spelling of 69128810849 in words is "sixty-nine billion, one hundred twenty-eight million, eight hundred ten thousand, eight hundred forty-nine".