1406801406867 has 4 divisors (see below), whose sum is σ = 1875735209160. Its totient is φ = 937867604576.

The previous prime is 1406801406859. The next prime is 1406801406887. The reversal of 1406801406867 is 7686041086041.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1406801406867 - 2³ = 1406801406859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1406801406887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234466901142 + ... + 234466901147.

It is an arithmetic number, because the mean of its divisors is an integer number (468933802290).

Almost surely, 2^{1406801406867} is an apocalyptic number.

1406801406867 is a deficient number, since it is larger than the sum of its proper divisors (468933802293).

1406801406867 is an equidigital number, since it uses as much as digits as its factorization.

1406801406867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468933802292.

The product of its (nonzero) digits is 1548288, while the sum is 51.

The spelling of 1406801406867 in words is "one trillion, four hundred six billion, eight hundred one million, four hundred six thousand, eight hundred sixty-seven".