1920992207069 has 4 divisors (see below), whose sum is σ = 2068760838396. Its totient is φ = 1773223575744.

The previous prime is 1920992207033. The next prime is 1920992207077. The reversal of 1920992207069 is 9607022990291.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 560416932100 + 1360575274969 = 748610^2 + 1166437^2 .

It is a cyclic number.

It is not a de Polignac number, because 1920992207069 - 2⁸ = 1920992206813 is a prime.

It is a super-2 number, since 2×1920992207069² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1920922207069) 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, 73884315644 + ... + 73884315669.

It is an arithmetic number, because the mean of its divisors is an integer number (517190209599).

Almost surely, 2^{1920992207069} is an apocalyptic number.

It is an amenable number.

1920992207069 is a deficient number, since it is larger than the sum of its proper divisors (147768631327).

1920992207069 is a wasteful number, since it uses less digits than its factorization.

1920992207069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147768631326.

The product of its (nonzero) digits is 2204496, while the sum is 56.

The spelling of 1920992207069 in words is "one trillion, nine hundred twenty billion, nine hundred ninety-two million, two hundred seven thousand, sixty-nine".