1268151851 has 8 divisors (see below), whose sum is σ = 1328444064. Its totient is φ = 1208289280.

The previous prime is 1268151809. The next prime is 1268151869. The reversal of 1268151851 is 1581518621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1268151851 - 2¹⁴ = 1268135467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1268181851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101360 + ... + 113181.

It is an arithmetic number, because the mean of its divisors is an integer number (166055508).

Almost surely, 2^1268151851 is an apocalyptic number.

1268151851 is a deficient number, since it is larger than the sum of its proper divisors (60292213).

1268151851 is a wasteful number, since it uses less digits than its factorization.

1268151851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214821.

The product of its digits is 19200, while the sum is 38.

The square root of 1268151851 is about 35611.1197661629. The cubic root of 1268151851 is about 1082.4065707402.

The spelling of 1268151851 in words is "one billion, two hundred sixty-eight million, one hundred fifty-one thousand, eight hundred fifty-one".