69400043668 has 6 divisors (see below), whose sum is σ = 121450076426. Its totient is φ = 34700021832.

The previous prime is 69400043633. The next prime is 69400043677. The reversal of 69400043668 is 86634000496.

It can be written as a sum of positive squares in only one way, i.e., 43906173444 + 25493870224 = 209538^2 + 159668^2 .

It is a super-2 number, since 2×69400043668² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8675005455 + ... + 8675005462.

Almost surely, 2^69400043668 is an apocalyptic number.

It is an amenable number.

69400043668 is a deficient number, since it is larger than the sum of its proper divisors (52050032758).

69400043668 is a wasteful number, since it uses less digits than its factorization.

69400043668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17350010921 (or 17350010919 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 46.

The spelling of 69400043668 in words is "sixty-nine billion, four hundred million, forty-three thousand, six hundred sixty-eight".