69985658997 has 48 divisors (see below), whose sum is σ = 107195332608. Its totient is φ = 43907851680.

The previous prime is 69985658959. The next prime is 69985659001. The reversal of 69985658997 is 79985658996.

It is a happy number.

It is not a de Polignac number, because 69985658997 - 2⁶ = 69985658933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69985658917) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 7387858 + ... + 7397324.

It is an arithmetic number, because the mean of its divisors is an integer number (2233236096).

Almost surely, 2^69985658997 is an apocalyptic number.

It is an amenable number.

69985658997 is a deficient number, since it is larger than the sum of its proper divisors (37209673611).

69985658997 is a wasteful number, since it uses less digits than its factorization.

69985658997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10070 (or 10067 counting only the distinct ones).

The product of its digits is 2645395200, while the sum is 81.

Subtracting 69985658997 from its reverse (79985658996), we obtain a palindrome (9999999999).

The spelling of 69985658997 in words is "sixty-nine billion, nine hundred eighty-five million, six hundred fifty-eight thousand, nine hundred ninety-seven".