69694643712 has 80 divisors (see below), whose sum is σ = 186113637072. Its totient is φ = 23176151040.

The previous prime is 69694643701. The next prime is 69694643737. The reversal of 69694643712 is 21734649696.

It is a happy number.

It is a super-2 number, since 2×69694643712² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 592768 + ... + 700544.

Almost surely, 2^69694643712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69694643712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93056818536).

69694643712 is an abundant number, since it is smaller than the sum of its proper divisors (116418993360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

69694643712 is a wasteful number, since it uses less digits than its factorization.

69694643712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108219 (or 108203 counting only the distinct ones).

The product of its digits is 11757312, while the sum is 57.

The spelling of 69694643712 in words is "sixty-nine billion, six hundred ninety-four million, six hundred forty-three thousand, seven hundred twelve".