1269643068 has 36 divisors (see below), whose sum is σ = 3312906688. Its totient is φ = 409561920.

The previous prime is 1269643031. The next prime is 1269643091. The reversal of 1269643068 is 8603469621.

1269643068 is a `hidden beast` number, since 126 + 96 + 430 + 6 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1269643068² = 3223987040240905248, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 567721 + ... + 569952.

Almost surely, 2^1269643068 is an apocalyptic number.

1269643068 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1269643068 is an abundant number, since it is smaller than the sum of its proper divisors (2043263620).

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

1269643068 is a wasteful number, since it uses less digits than its factorization.

1269643068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137714 (or 1137709 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 1269643068 is about 35632.0511337756. The cubic root of 1269643068 is about 1082.8306710605.

The spelling of 1269643068 in words is "one billion, two hundred sixty-nine million, six hundred forty-three thousand, sixty-eight".