1268926242705 has 96 divisors (see below), whose sum is σ = 2414255620608. Its totient is φ = 611445542400.

The previous prime is 1268926242643. The next prime is 1268926242757. The reversal of 1268926242705 is 5072426298621.

1268926242705 is a `hidden beast` number, since 1 + 2 + 6 + 8 + 9 + 2 + 624 + 2 + 7 + 0 + 5 = 666.

It is not a de Polignac number, because 1268926242705 - 2⁸ = 1268926242449 is a prime.

It is a super-2 number, since 2×1268926242705² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 54423000 + ... + 54446310.

It is an arithmetic number, because the mean of its divisors is an integer number (25148496048).

Almost surely, 2^{1268926242705} is an apocalyptic number.

1268926242705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1268926242705 is a deficient number, since it is larger than the sum of its proper divisors (1145329377903).

1268926242705 is a wasteful number, since it uses less digits than its factorization.

1268926242705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24007 (or 24004 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 1268926242705 in words is "one trillion, two hundred sixty-eight billion, nine hundred twenty-six million, two hundred forty-two thousand, seven hundred five".