1279043040198 has 96 divisors (see below), whose sum is σ = 3402491000832. Its totient is φ = 312676657920.

The previous prime is 1279043040169. The next prime is 1279043040199. The reversal of 1279043040198 is 8910403409721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1279043040199) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7315990 + ... + 7488777.

It is an arithmetic number, because the mean of its divisors is an integer number (35442614592).

Almost surely, 2^{1279043040198} is an apocalyptic number.

1279043040198 is an abundant number, since it is smaller than the sum of its proper divisors (2123447960634).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1279043040198 is a wasteful number, since it uses less digits than its factorization.

1279043040198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14804818 (or 14804807 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 48.

The spelling of 1279043040198 in words is "one trillion, two hundred seventy-nine billion, forty-three million, forty thousand, one hundred ninety-eight".