1929685495684 has 12 divisors (see below), whose sum is σ = 3381712597900. Its totient is φ = 963481896288.

The previous prime is 1929685495657. The next prime is 1929685495697. The reversal of 1929685495684 is 4865945869291.

It can be written as a sum of positive squares in 2 ways, for example, as 1120045455684 + 809640040000 = 1058322^2 + 899800^2 .

It is a super-2 number, since 2×1929685495684² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1929685495684.

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, 340209699 + ... + 340215370.

Almost surely, 2^{1929685495684} is an apocalyptic number.

It is an amenable number.

1929685495684 is a deficient number, since it is larger than the sum of its proper divisors (1452027102216).

1929685495684 is a wasteful number, since it uses less digits than its factorization.

1929685495684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680425782 (or 680425780 counting only the distinct ones).

The product of its digits is 1343692800, while the sum is 76.

The spelling of 1929685495684 in words is "one trillion, nine hundred twenty-nine billion, six hundred eighty-five million, four hundred ninety-five thousand, six hundred eighty-four".