1268011379 has 16 divisors (see below), whose sum is σ = 1362938400. Its totient is φ = 1176005376.

The previous prime is 1268011369. The next prime is 1268011403. The reversal of 1268011379 is 9731108621.

It is a cyclic number.

It is not a de Polignac number, because 1268011379 - 2¹² = 1268007283 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1268011319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 571877 + ... + 574089.

It is an arithmetic number, because the mean of its divisors is an integer number (85183650).

Almost surely, 2^1268011379 is an apocalyptic number.

1268011379 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1268011379 is a deficient number, since it is larger than the sum of its proper divisors (94927021).

1268011379 is a wasteful number, since it uses less digits than its factorization.

1268011379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2854.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 1268011379 is about 35609.1474062494. The cubic root of 1268011379 is about 1082.3666035417.

The spelling of 1268011379 in words is "one billion, two hundred sixty-eight million, eleven thousand, three hundred seventy-nine".