2069409039688 has 16 divisors (see below), whose sum is σ = 3880163392380. Its totient is φ = 1034698801728.

The previous prime is 2069409039683. The next prime is 2069409039749. The reversal of 2069409039688 is 8869309049602.

It can be written as a sum of positive squares in 2 ways, for example, as 1939173221764 + 130235817924 = 1392542^2 + 360882^2 .

It is not an unprimeable number, because it can be changed into a prime (2069409039683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1091970 + ... + 2308942.

Almost surely, 2^{2069409039688} is an apocalyptic number.

It is an amenable number.

2069409039688 is a deficient number, since it is larger than the sum of its proper divisors (1810754352692).

2069409039688 is a wasteful number, since it uses less digits than its factorization.

2069409039688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1429536 (or 1429532 counting only the distinct ones).

The product of its (nonzero) digits is 40310784, while the sum is 64.

The spelling of 2069409039688 in words is "two trillion, sixty-nine billion, four hundred nine million, thirty-nine thousand, six hundred eighty-eight".