1267821730696 has 16 divisors (see below), whose sum is σ = 2377178274240. Its totient is φ = 633907524240.

The previous prime is 1267821730687. The next prime is 1267821730751. The reversal of 1267821730696 is 6960371287621.

It is a self number, because there is not a number n which added to its sum of digits gives 1267821730696.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2058981 + ... + 2602891.

It is an arithmetic number, because the mean of its divisors is an integer number (148573642140).

Almost surely, 2^{1267821730696} is an apocalyptic number.

It is an amenable number.

1267821730696 is a deficient number, since it is larger than the sum of its proper divisors (1109356543544).

1267821730696 is a wasteful number, since it uses less digits than its factorization.

1267821730696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835284 (or 835280 counting only the distinct ones).

The product of its (nonzero) digits is 9144576, while the sum is 58.

The spelling of 1267821730696 in words is "one trillion, two hundred sixty-seven billion, eight hundred twenty-one million, seven hundred thirty thousand, six hundred ninety-six".