1268694549 has 32 divisors (see below), whose sum is σ = 1927549440. Its totient is φ = 824406336.

The previous prime is 1268694533. The next prime is 1268694551. The reversal of 1268694549 is 9454968621.

1268694549 is a `hidden beast` number, since 1 + 2 + 6 + 8 + 6 + 94 + 549 = 666.

It is not a de Polignac number, because 1268694549 - 2⁴ = 1268694533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1268694495 and 1268694504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1268692549) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 221844 + ... + 227490.

It is an arithmetic number, because the mean of its divisors is an integer number (60235920).

Almost surely, 2^1268694549 is an apocalyptic number.

It is an amenable number.

1268694549 is a deficient number, since it is larger than the sum of its proper divisors (658854891).

1268694549 is a wasteful number, since it uses less digits than its factorization.

1268694549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5866 (or 5860 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 54.

The square root of 1268694549 is about 35618.7387339866. The cubic root of 1268694549 is about 1082.5609518595.

The spelling of 1268694549 in words is "one billion, two hundred sixty-eight million, six hundred ninety-four thousand, five hundred forty-nine".