19692137012 has 12 divisors (see below), whose sum is σ = 34463633316. Its totient is φ = 9845384640.

The previous prime is 19692137011. The next prime is 19692137021. The reversal of 19692137012 is 21073129691.

It can be written as a sum of positive squares in 2 ways, for example, as 14554974736 + 5137162276 = 120644^2 + 71674^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19692137011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103193 + ... + 223680.

It is an arithmetic number, because the mean of its divisors is an integer number (2871969443).

Almost surely, 2^19692137012 is an apocalyptic number.

It is an amenable number.

19692137012 is a deficient number, since it is larger than the sum of its proper divisors (14771496304).

19692137012 is a wasteful number, since it uses less digits than its factorization.

19692137012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341938 (or 341936 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 41.

The spelling of 19692137012 in words is "nineteen billion, six hundred ninety-two million, one hundred thirty-seven thousand, twelve".