1268445477705 has 128 divisors (see below), whose sum is σ = 2565655658496. Its totient is φ = 521781350400.

The previous prime is 1268445477703. The next prime is 1268445477781. The reversal of 1268445477705 is 5077745448621.

It is not a de Polignac number, because 1268445477705 - 2¹ = 1268445477703 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1268445477703) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4454715 + ... + 4730895.

It is an arithmetic number, because the mean of its divisors is an integer number (20044184832).

Almost surely, 2^{1268445477705} is an apocalyptic number.

1268445477705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1268445477705 is an abundant number, since it is smaller than the sum of its proper divisors (1297210180791).

1268445477705 is a wasteful number, since it uses less digits than its factorization.

1268445477705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276327.

The product of its (nonzero) digits is 52684800, while the sum is 60.

The spelling of 1268445477705 in words is "one trillion, two hundred sixty-eight billion, four hundred forty-five million, four hundred seventy-seven thousand, seven hundred five".