1269687763968 has 88 divisors (see below), whose sum is σ = 3644502512448. Its totient is φ = 390673145856.

The previous prime is 1269687763957. The next prime is 1269687763997. The reversal of 1269687763968 is 8693677869621.

It is a super-2 number, since 2×1269687763968² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (78).

It is a junction number, because it is equal to n+sod(n) for n = 1269687763893 and 1269687763902.

It is an unprimeable number.

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, 15856596 + ... + 15936467.

Almost surely, 2^{1269687763968} is an apocalyptic number.

It is an amenable number.

1269687763968 is an abundant number, since it is smaller than the sum of its proper divisors (2374814748480).

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

1269687763968 is a wasteful number, since it uses less digits than its factorization.

1269687763968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31793099 (or 31793081 counting only the distinct ones).

The product of its digits is 1975228416, while the sum is 78.

The spelling of 1269687763968 in words is "one trillion, two hundred sixty-nine billion, six hundred eighty-seven million, seven hundred sixty-three thousand, nine hundred sixty-eight".