1268196345 has 96 divisors (see below), whose sum is σ = 2599938432. Its totient is φ = 587492352.

The previous prime is 1268196341. The next prime is 1268196353. The reversal of 1268196345 is 5436918621.

1268196345 is a `hidden beast` number, since 1 + 2 + 6 + 8 + 1 + 9 + 634 + 5 = 666.

It is not a de Polignac number, because 1268196345 - 2² = 1268196341 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1268196345.

It is not an unprimeable number, because it can be changed into a prime (1268196341) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 266154 + ... + 270876.

It is an arithmetic number, because the mean of its divisors is an integer number (27082692).

Almost surely, 2^1268196345 is an apocalyptic number.

1268196345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1268196345 is an abundant number, since it is smaller than the sum of its proper divisors (1331742087).

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

1268196345 is a wasteful number, since it uses less digits than its factorization.

1268196345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4773 (or 4761 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 1268196345 is about 35611.7444812803. The cubic root of 1268196345 is about 1082.4192295909.

The spelling of 1268196345 in words is "one billion, two hundred sixty-eight million, one hundred ninety-six thousand, three hundred forty-five".