1291599240394 has 8 divisors (see below), whose sum is σ = 1978620113088. Its totient is φ = 632059202700.

The previous prime is 1291599240343. The next prime is 1291599240403. The reversal of 1291599240394 is 4930429951921.

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

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 3 ways as a sum of consecutive naturals, for example, 6870208632 + ... + 6870208819.

It is an arithmetic number, because the mean of its divisors is an integer number (247327514136).

Almost surely, 2^{1291599240394} is an apocalyptic number.

1291599240394 is a deficient number, since it is larger than the sum of its proper divisors (687020872694).

1291599240394 is a wasteful number, since it uses less digits than its factorization.

1291599240394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13740417500.

The product of its (nonzero) digits is 6298560, while the sum is 58.

The spelling of 1291599240394 in words is "one trillion, two hundred ninety-one billion, five hundred ninety-nine million, two hundred forty thousand, three hundred ninety-four".