1296718837906 has 8 divisors (see below), whose sum is σ = 1945091744640. Its totient is φ = 648354923028.

The previous prime is 1296718837903. The next prime is 1296718837919. The reversal of 1296718837906 is 6097388176921.

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

It is not an unprimeable number, because it can be changed into a prime (1296718837903) 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, 1875066 + ... + 2471701.

It is an arithmetic number, because the mean of its divisors is an integer number (243136468080).

Almost surely, 2^{1296718837906} is an apocalyptic number.

1296718837906 is a deficient number, since it is larger than the sum of its proper divisors (648372906734).

1296718837906 is a wasteful number, since it uses less digits than its factorization.

1296718837906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4495928.

The product of its (nonzero) digits is 54867456, while the sum is 67.

The spelling of 1296718837906 in words is "one trillion, two hundred ninety-six billion, seven hundred eighteen million, eight hundred thirty-seven thousand, nine hundred six".