1406801406868 has 36 divisors (see below), whose sum is σ = 2914216404820. Its totient is φ = 590266321920.

The previous prime is 1406801406859. The next prime is 1406801406887. The reversal of 1406801406868 is 8686041086041.

It can be written as a sum of positive squares in 2 ways, for example, as 247514210064 + 1159287196804 = 497508^2 + 1076702^2 .

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111786573 + ... + 111799156.

Almost surely, 2^{1406801406868} is an apocalyptic number.

It is an amenable number.

1406801406868 is an abundant number, since it is smaller than the sum of its proper divisors (1507414997952).

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

1406801406868 is a wasteful number, since it uses less digits than its factorization.

1406801406868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223585768 (or 223585755 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 52.

The spelling of 1406801406868 in words is "one trillion, four hundred six billion, eight hundred one million, four hundred six thousand, eight hundred sixty-eight".