1268635357916 has 24 divisors (see below), whose sum is σ = 2228361883440. Its totient is φ = 631961350272.

The previous prime is 1268635357909. The next prime is 1268635357933. The reversal of 1268635357916 is 6197535368621.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6304670 + ... + 6502778.

It is an arithmetic number, because the mean of its divisors is an integer number (92848411810).

Almost surely, 2^{1268635357916} is an apocalyptic number.

It is an amenable number.

1268635357916 is a deficient number, since it is larger than the sum of its proper divisors (959726525524).

1268635357916 is a wasteful number, since it uses less digits than its factorization.

1268635357916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204053 (or 204051 counting only the distinct ones).

The product of its digits is 48988800, while the sum is 62.

The spelling of 1268635357916 in words is "one trillion, two hundred sixty-eight billion, six hundred thirty-five million, three hundred fifty-seven thousand, nine hundred sixteen".