1421268457868 has 36 divisors (see below), whose sum is σ = 2896130698272. Its totient is φ = 608518380960.

The previous prime is 1421268457849. The next prime is 1421268457877. The reversal of 1421268457868 is 8687548621241.

It is a super-2 number, since 2×1421268457868² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1421268457868.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3350996 + ... + 3751227.

It is an arithmetic number, because the mean of its divisors is an integer number (80448074952).

Almost surely, 2^{1421268457868} is an apocalyptic number.

It is an amenable number.

1421268457868 is an abundant number, since it is smaller than the sum of its proper divisors (1474862240404).

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

1421268457868 is a wasteful number, since it uses less digits than its factorization.

1421268457868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7103262 (or 7103253 counting only the distinct ones).

The product of its digits is 41287680, while the sum is 62.

The spelling of 1421268457868 in words is "one trillion, four hundred twenty-one billion, two hundred sixty-eight million, four hundred fifty-seven thousand, eight hundred sixty-eight".