1949684869492 has 12 divisors (see below), whose sum is σ = 3414032802180. Its totient is φ = 974246926016.

The previous prime is 1949684869481. The next prime is 1949684869529. The reversal of 1949684869492 is 2949684869491.

It can be written as a sum of positive squares in 2 ways, for example, as 29675574756 + 1920009294736 = 172266^2 + 1385644^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148869817 + ... + 148882912.

It is an arithmetic number, because the mean of its divisors is an integer number (284502733515).

Almost surely, 2^{1949684869492} is an apocalyptic number.

It is an amenable number.

1949684869492 is a deficient number, since it is larger than the sum of its proper divisors (1464347932688).

1949684869492 is a wasteful number, since it uses less digits than its factorization.

1949684869492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297754370 (or 297754368 counting only the distinct ones).

The product of its digits is 1934917632, while the sum is 79.

Subtracting 1949684869492 from its reverse (2949684869491), we obtain a palindrome (999999999999).

The spelling of 1949684869492 in words is "one trillion, nine hundred forty-nine billion, six hundred eighty-four million, eight hundred sixty-nine thousand, four hundred ninety-two".