69681487505 has 8 divisors (see below), whose sum is σ = 95563182912. Its totient is φ = 47781591408.

The previous prime is 69681487451. The next prime is 69681487529. The reversal of 69681487505 is 50578418696.

It is a happy number.

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 69681487505 - 2³⁶ = 962010769 is a prime.

It is a super-2 number, since 2×69681487505² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 995449787 + ... + 995449856.

It is an arithmetic number, because the mean of its divisors is an integer number (11945397864).

Almost surely, 2^69681487505 is an apocalyptic number.

It is an amenable number.

69681487505 is a deficient number, since it is larger than the sum of its proper divisors (25881695407).

69681487505 is a wasteful number, since it uses less digits than its factorization.

69681487505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1990899655.

The product of its (nonzero) digits is 14515200, while the sum is 59.

The spelling of 69681487505 in words is "sixty-nine billion, six hundred eighty-one million, four hundred eighty-seven thousand, five hundred five".