1406222787487 has 8 divisors (see below), whose sum is σ = 1616401421856. Its totient is φ = 1198366569312.

The previous prime is 1406222787443. The next prime is 1406222787491. The reversal of 1406222787487 is 7847872226041.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1406222787487 - 2²⁷ = 1406088569759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1406222787427) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 580602748 + ... + 580605169.

It is an arithmetic number, because the mean of its divisors is an integer number (202050177732).

Almost surely, 2^{1406222787487} is an apocalyptic number.

1406222787487 is a deficient number, since it is larger than the sum of its proper divisors (210178634369).

1406222787487 is a wasteful number, since it uses less digits than its factorization.

1406222787487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1161208097.

The product of its (nonzero) digits is 16859136, while the sum is 58.

The spelling of 1406222787487 in words is "one trillion, four hundred six billion, two hundred twenty-two million, seven hundred eighty-seven thousand, four hundred eighty-seven".