69757664641 has 24 divisors (see below), whose sum is σ = 82570263840. Its totient is φ = 58744510272.

The previous prime is 69757664623. The next prime is 69757664659. The reversal of 69757664641 is 14646675796.

It is an interprime number because it is at equal distance from previous prime (69757664623) and next prime (69757664659).

It is not a de Polignac number, because 69757664641 - 2¹¹ = 69757662593 is a prime.

It is a super-2 number, since 2×69757664641² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (61) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 69757664641.

It is not an unprimeable number, because it can be changed into a prime (69757664671) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5755710 + ... + 5767816.

It is an arithmetic number, because the mean of its divisors is an integer number (3440427660).

Almost surely, 2^69757664641 is an apocalyptic number.

It is an amenable number.

69757664641 is a deficient number, since it is larger than the sum of its proper divisors (12812599199).

69757664641 is a wasteful number, since it uses less digits than its factorization.

69757664641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14173 (or 14166 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 61.

The spelling of 69757664641 in words is "sixty-nine billion, seven hundred fifty-seven million, six hundred sixty-four thousand, six hundred forty-one".