1406120426421 has 4 divisors (see below), whose sum is σ = 1874827235232. Its totient is φ = 937413617612.

The previous prime is 1406120426413. The next prime is 1406120426429. The reversal of 1406120426421 is 1246240216041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (1406120426413) and next prime (1406120426429).

It is a cyclic number.

It is not a de Polignac number, because 1406120426421 - 2³ = 1406120426413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1406120426429) 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, 234353404401 + ... + 234353404406.

It is an arithmetic number, because the mean of its divisors is an integer number (468706808808).

Almost surely, 2^{1406120426421} is an apocalyptic number.

It is an amenable number.

1406120426421 is a deficient number, since it is larger than the sum of its proper divisors (468706808811).

1406120426421 is an equidigital number, since it uses as much as digits as its factorization.

1406120426421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468706808810.

The product of its (nonzero) digits is 18432, while the sum is 33.

The spelling of 1406120426421 in words is "one trillion, four hundred six billion, one hundred twenty million, four hundred twenty-six thousand, four hundred twenty-one".