1406447460644 has 24 divisors (see below), whose sum is σ = 2576463515136. Its totient is φ = 670954032000.

The previous prime is 1406447460631. The next prime is 1406447460661. The reversal of 1406447460644 is 4460647446041.

It is a junction number, because it is equal to n+sod(n) for n = 1406447460592 and 1406447460601.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79866677 + ... + 79884284.

It is an arithmetic number, because the mean of its divisors is an integer number (107352646464).

Almost surely, 2^{1406447460644} is an apocalyptic number.

It is an amenable number.

1406447460644 is a deficient number, since it is larger than the sum of its proper divisors (1170016054492).

1406447460644 is a wasteful number, since it uses less digits than its factorization.

1406447460644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159751067 (or 159751065 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 50.

The spelling of 1406447460644 in words is "one trillion, four hundred six billion, four hundred forty-seven million, four hundred sixty thousand, six hundred forty-four".