1406978333812 has 6 divisors (see below), whose sum is σ = 2462212084178. Its totient is φ = 703489166904.

The previous prime is 1406978333809. The next prime is 1406978333837. The reversal of 1406978333812 is 2183338796041.

It can be written as a sum of positive squares in only one way, i.e., 859206640356 + 547771693456 = 926934^2 + 740116^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175872291723 + ... + 175872291730.

Almost surely, 2^{1406978333812} is an apocalyptic number.

It is an amenable number.

1406978333812 is a deficient number, since it is larger than the sum of its proper divisors (1055233750366).

1406978333812 is a wasteful number, since it uses less digits than its factorization.

1406978333812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351744583457 (or 351744583455 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 55.

The spelling of 1406978333812 in words is "one trillion, four hundred six billion, nine hundred seventy-eight million, three hundred thirty-three thousand, eight hundred twelve".