1261733068 has 6 divisors (see below), whose sum is σ = 2208032876. Its totient is φ = 630866532.

The previous prime is 1261733063. The next prime is 1261733101. The reversal of 1261733068 is 8603371621.

It is not an unprimeable number, because it can be changed into a prime (1261733063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157716630 + ... + 157716637.

Almost surely, 2^1261733068 is an apocalyptic number.

It is an amenable number.

1261733068 is a deficient number, since it is larger than the sum of its proper divisors (946299808).

1261733068 is a wasteful number, since it uses less digits than its factorization.

1261733068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315433271 (or 315433269 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 1261733068 is about 35520.8821399469. The cubic root of 1261733068 is about 1080.5772714057.

The spelling of 1261733068 in words is "one billion, two hundred sixty-one million, seven hundred thirty-three thousand, sixty-eight".