1949126668794 has 64 divisors (see below), whose sum is σ = 4364088595200. Its totient is φ = 644806842624.

The previous prime is 1949126668787. The next prime is 1949126668807. The reversal of 1949126668794 is 4978666219491.

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 31 ways as a sum of consecutive naturals, for example, 31980702 + ... + 32041590.

It is an arithmetic number, because the mean of its divisors is an integer number (68188884300).

Almost surely, 2^{1949126668794} is an apocalyptic number.

1949126668794 is an abundant number, since it is smaller than the sum of its proper divisors (2414961926406).

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

1949126668794 is a wasteful number, since it uses less digits than its factorization.

1949126668794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65364 (or 65358 counting only the distinct ones).

The product of its digits is 282175488, while the sum is 72.

The spelling of 1949126668794 in words is "one trillion, nine hundred forty-nine billion, one hundred twenty-six million, six hundred sixty-eight thousand, seven hundred ninety-four".